<?php
/**
 * A class for reading Microsoft Excel (97/2003) Spreadsheets.
 *
 * Version 2.21
 *
 * Enhanced and maintained by Matt Kruse < http://mattkruse.com >
 * Maintained at http://code.google.com/p/php-excel-reader/
 *
 * Format parsing and MUCH more contributed by:
 *    Matt Roxburgh < http://www.roxburgh.me.uk >
 *
 * DOCUMENTATION
 * =============
 *   http://code.google.com/p/php-excel-reader/wiki/Documentation
 *
 * CHANGE LOG
 * ==========
 *   http://code.google.com/p/php-excel-reader/wiki/ChangeHistory
 *
 * DISCUSSION/SUPPORT
 * ==================
 *   http://groups.google.com/group/php-excel-reader-discuss/topics
 *
 * --------------------------------------------------------------------------
 *
 * Originally developed by Vadim Tkachenko under the name PHPExcelReader.
 * (http://sourceforge.net/projects/phpexcelreader)
 * Based on the Java version by Andy Khan (http://www.andykhan.com).  Now
 * maintained by David Sanders.  Reads only Biff 7 and Biff 8 formats.
 *
 * PHP versions 4 and 5
 *
 * LICENSE: This source file is subject to version 3.0 of the PHP license
 * that is available through the world-wide-web at the following URI:
 * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
 * the PHP License and are unable to obtain it through the web, please
 * send a note to license@php.net so we can mail you a copy immediately.
 *
 * @category   Spreadsheet
 * @package Spreadsheet_Excel_Reader
 * @author   Vadim Tkachenko <vt@apachephp.com>
 * @license http://www.php.net/license/3_0.txt  PHP License 3.0
 * @version CVS: $Id: reader.php 19 2007-03-13 12:42:41Z shangxiao $
 * @link       http://pear.php.net/package/Spreadsheet_Excel_Reader
 * @see     OLE, Spreadsheet_Excel_Writer
 * --------------------------------------------------------------------------
 */

define('NUM_BIG_BLOCK_DEPOT_BLOCKS_POS', 0x2c);
define('SMALL_BLOCK_DEPOT_BLOCK_POS', 0x3c);
define('ROOT_START_BLOCK_POS', 0x30);
define('BIG_BLOCK_SIZE', 0x200);
define('SMALL_BLOCK_SIZE', 0x40);
define('EXTENSION_BLOCK_POS', 0x44);
define('NUM_EXTENSION_BLOCK_POS', 0x48);
define('PROPERTY_STORAGE_BLOCK_SIZE', 0x80);
define('BIG_BLOCK_DEPOT_BLOCKS_POS', 0x4c);
define('SMALL_BLOCK_THRESHOLD', 0x1000);
// property storage offsets
define('SIZE_OF_NAME_POS', 0x40);
define('TYPE_POS', 0x42);
define('START_BLOCK_POS', 0x74);
define('SIZE_POS', 0x78);
define('IDENTIFIER_OLE', pack("CCCCCCCC",0xd0,0xcf,0x11,0xe0,0xa1,0xb1,0x1a,0xe1));

function GetInt4d($data, $pos) {
    $value = ord($data[$pos]) | (ord($data[$pos+1]) << 8) | (ord($data[$pos+2]) << 16) | (ord($data[$pos+3]) << 24);
    if ($value>=4294967294) {
        $value=-2;
    }
    return $value;
}

// http://uk.php.net/manual/en/function.getdate.php
function gmgetdate($ts = null){
    $k = array('seconds','minutes','hours','mday','wday','mon','year','yday','weekday','month',0);
    return(array_comb($k,explode(":",gmdate('s:i:G:j:w:n:Y:z:l:F:U',is_null($ts)?time():$ts))));
    }

// Added for PHP4 compatibility
function array_comb($array1, $array2) {
    $out = array();
    foreach ($array1 as $key => $value) {
        $out[$value] = $array2[$key];
    }
    return $out;
}

function v($data,$pos) {
    return ord($data[$pos]) | ord($data[$pos+1])<<8;
}

class OLERead {
    var $data = '';
    function OLERead(){ }

    function read($sFileName){
        // check if file exist and is readable (Darko Miljanovic)
        if(!is_readable($sFileName)) {
            $this->error = 1;
            return false;
        }
        $this->data = @file_get_contents($sFileName);
        if (!$this->data) {
            $this->error = 1;
            return false;
        }
        if (substr($this->data, 0, 8) != IDENTIFIER_OLE) {
            $this->error = 1;
            return false;
        }
        $this->numBigBlockDepotBlocks = GetInt4d($this->data, NUM_BIG_BLOCK_DEPOT_BLOCKS_POS);
        $this->sbdStartBlock = GetInt4d($this->data, SMALL_BLOCK_DEPOT_BLOCK_POS);
        $this->rootStartBlock = GetInt4d($this->data, ROOT_START_BLOCK_POS);
        $this->extensionBlock = GetInt4d($this->data, EXTENSION_BLOCK_POS);
        $this->numExtensionBlocks = GetInt4d($this->data, NUM_EXTENSION_BLOCK_POS);

        $bigBlockDepotBlocks = array();
        $pos = BIG_BLOCK_DEPOT_BLOCKS_POS;
        $bbdBlocks = $this->numBigBlockDepotBlocks;
        if ($this->numExtensionBlocks != 0) {
            $bbdBlocks = (BIG_BLOCK_SIZE - BIG_BLOCK_DEPOT_BLOCKS_POS)/4;
        }

        for ($i = 0; $i < $bbdBlocks; $i++) {
            $bigBlockDepotBlocks[$i] = GetInt4d($this->data, $pos);
            $pos += 4;
        }


        for ($j = 0; $j < $this->numExtensionBlocks; $j++) {
            $pos = ($this->extensionBlock + 1) * BIG_BLOCK_SIZE;
            $blocksToRead = min($this->numBigBlockDepotBlocks - $bbdBlocks, BIG_BLOCK_SIZE / 4 - 1);

            for ($i = $bbdBlocks; $i < $bbdBlocks + $blocksToRead; $i++) {
                $bigBlockDepotBlocks[$i] = GetInt4d($this->data, $pos);
                $pos += 4;
            }

            $bbdBlocks += $blocksToRead;
            if ($bbdBlocks < $this->numBigBlockDepotBlocks) {
                $this->extensionBlock = GetInt4d($this->data, $pos);
            }
        }

        // readBigBlockDepot
        $pos = 0;
        $index = 0;
        $this->bigBlockChain = array();

        for ($i = 0; $i < $this->numBigBlockDepotBlocks; $i++) {
            $pos = ($bigBlockDepotBlocks[$i] + 1) * BIG_BLOCK_SIZE;
            //echo "pos = $pos";
            for ($j = 0 ; $j < BIG_BLOCK_SIZE / 4; $j++) {
                $this->bigBlockChain[$index] = GetInt4d($this->data, $pos);
                $pos += 4 ;
                $index++;
            }
        }

        // readSmallBlockDepot();
        $pos = 0;
        $index = 0;
        $sbdBlock = $this->sbdStartBlock;
        $this->smallBlockChain = array();

        while ($sbdBlock != -2) {
          $pos = ($sbdBlock + 1) * BIG_BLOCK_SIZE;
          for ($j = 0; $j < BIG_BLOCK_SIZE / 4; $j++) {
            $this->smallBlockChain[$index] = GetInt4d($this->data, $pos);
            $pos += 4;
            $index++;
          }
          $sbdBlock = $this->bigBlockChain[$sbdBlock];
        }


        // readData(rootStartBlock)
        $block = $this->rootStartBlock;
        $pos = 0;
        $this->entry = $this->__readData($block);
        $this->__readPropertySets();
    }

    function __readData($bl) {
        $block = $bl;
        $pos = 0;
        $data = '';
        while ($block != -2)  {
            $pos = ($block + 1) * BIG_BLOCK_SIZE;
            $data = $data.substr($this->data, $pos, BIG_BLOCK_SIZE);
            $block = $this->bigBlockChain[$block];
        }
        return $data;
     }

    function __readPropertySets(){
        $offset = 0;
        while ($offset < strlen($this->entry)) {
            $d = substr($this->entry, $offset, PROPERTY_STORAGE_BLOCK_SIZE);
            $nameSize = ord($d[SIZE_OF_NAME_POS]) | (ord($d[SIZE_OF_NAME_POS+1]) << 8);
            $type = ord($d[TYPE_POS]);
            $startBlock = GetInt4d($d, START_BLOCK_POS);
            $size = GetInt4d($d, SIZE_POS);
            $name = '';
            for ($i = 0; $i < $nameSize ; $i++) {
                $name .= $d[$i];
            }
            $name = str_replace("\x00", "", $name);
            $this->props[] = array (
                'name' => $name,
                'type' => $type,
                'startBlock' => $startBlock,
                'size' => $size);
            if ((strtolower($name) == "workbook") || ( strtolower($name) == "book")) {
                $this->wrkbook = count($this->props) - 1;
            }
            if ($name == "Root Entry") {
                $this->rootentry = count($this->props) - 1;
            }
            $offset += PROPERTY_STORAGE_BLOCK_SIZE;
        }

    }


    function getWorkBook(){
        if ($this->props[$this->wrkbook]['size'] < SMALL_BLOCK_THRESHOLD){
            $rootdata = $this->__readData($this->props[$this->rootentry]['startBlock']);
            $streamData = '';
            $block = $this->props[$this->wrkbook]['startBlock'];
            $pos = 0;
            while ($block != -2) {
                  $pos = $block * SMALL_BLOCK_SIZE;
                  $streamData .= substr($rootdata, $pos, SMALL_BLOCK_SIZE);
                  $block = $this->smallBlockChain[$block];
            }
            return $streamData;
        }else{
            $numBlocks = $this->props[$this->wrkbook]['size'] / BIG_BLOCK_SIZE;
            if ($this->props[$this->wrkbook]['size'] % BIG_BLOCK_SIZE != 0) {
                $numBlocks++;
            }

            if ($numBlocks == 0) return '';
            $streamData = '';
            $block = $this->props[$this->wrkbook]['startBlock'];
            $pos = 0;
            while ($block != -2) {
              $pos = ($block + 1) * BIG_BLOCK_SIZE;
              $streamData .= substr($this->data, $pos, BIG_BLOCK_SIZE);
              $block = $this->bigBlockChain[$block];
            }
            return $streamData;
        }
    }

}

define('SPREADSHEET_EXCEL_READER_BIFF8',             0x600);
define('SPREADSHEET_EXCEL_READER_BIFF7',             0x500);
define('SPREADSHEET_EXCEL_READER_WORKBOOKGLOBALS',   0x5);
define('SPREADSHEET_EXCEL_READER_WORKSHEET',         0x10);
define('SPREADSHEET_EXCEL_READER_TYPE_BOF',       0x809);
define('SPREADSHEET_EXCEL_READER_TYPE_EOF',       0x0a);
define('SPREADSHEET_EXCEL_READER_TYPE_BOUNDSHEET',   0x85);
define('SPREADSHEET_EXCEL_READER_TYPE_DIMENSION',   0x200);
define('SPREADSHEET_EXCEL_READER_TYPE_ROW',       0x208);
define('SPREADSHEET_EXCEL_READER_TYPE_DBCELL',     0xd7);
define('SPREADSHEET_EXCEL_READER_TYPE_FILEPASS',     0x2f);
define('SPREADSHEET_EXCEL_READER_TYPE_NOTE',         0x1c);
define('SPREADSHEET_EXCEL_READER_TYPE_TXO',       0x1b6);
define('SPREADSHEET_EXCEL_READER_TYPE_RK',         0x7e);
define('SPREADSHEET_EXCEL_READER_TYPE_RK2',       0x27e);
define('SPREADSHEET_EXCEL_READER_TYPE_MULRK',       0xbd);
define('SPREADSHEET_EXCEL_READER_TYPE_MULBLANK',     0xbe);
define('SPREADSHEET_EXCEL_READER_TYPE_INDEX',       0x20b);
define('SPREADSHEET_EXCEL_READER_TYPE_SST',       0xfc);
define('SPREADSHEET_EXCEL_READER_TYPE_EXTSST',     0xff);
define('SPREADSHEET_EXCEL_READER_TYPE_CONTINUE',     0x3c);
define('SPREADSHEET_EXCEL_READER_TYPE_LABEL',       0x204);
define('SPREADSHEET_EXCEL_READER_TYPE_LABELSST',     0xfd);
define('SPREADSHEET_EXCEL_READER_TYPE_NUMBER',     0x203);
define('SPREADSHEET_EXCEL_READER_TYPE_NAME',         0x18);
define('SPREADSHEET_EXCEL_READER_TYPE_ARRAY',       0x221);
define('SPREADSHEET_EXCEL_READER_TYPE_STRING',     0x207);
define('SPREADSHEET_EXCEL_READER_TYPE_FORMULA',   0x406);
define('SPREADSHEET_EXCEL_READER_TYPE_FORMULA2',     0x6);
define('SPREADSHEET_EXCEL_READER_TYPE_FORMAT',     0x41e);
define('SPREADSHEET_EXCEL_READER_TYPE_XF',         0xe0);
define('SPREADSHEET_EXCEL_READER_TYPE_BOOLERR',   0x205);
define('SPREADSHEET_EXCEL_READER_TYPE_FONT',      0x0031);
define('SPREADSHEET_EXCEL_READER_TYPE_PALETTE',   0x0092);
define('SPREADSHEET_EXCEL_READER_TYPE_UNKNOWN',   0xffff);
define('SPREADSHEET_EXCEL_READER_TYPE_NINETEENFOUR', 0x22);
define('SPREADSHEET_EXCEL_READER_TYPE_MERGEDCELLS',  0xE5);
define('SPREADSHEET_EXCEL_READER_UTCOFFSETDAYS' ,   25569);
define('SPREADSHEET_EXCEL_READER_UTCOFFSETDAYS1904', 24107);
define('SPREADSHEET_EXCEL_READER_MSINADAY',       86400);
define('SPREADSHEET_EXCEL_READER_TYPE_HYPER',        0x01b8);
define('SPREADSHEET_EXCEL_READER_TYPE_COLINFO',      0x7d);
define('SPREADSHEET_EXCEL_READER_TYPE_DEFCOLWIDTH',  0x55);
define('SPREADSHEET_EXCEL_READER_TYPE_STANDARDWIDTH', 0x99);
define('SPREADSHEET_EXCEL_READER_DEF_NUM_FORMAT',   "%s");


/*
* Main Class
*/
class Spreadsheet_Excel_Reader {

    // MK: Added to make data retrieval easier
    var $colnames = array();
    var $colindexes = array();
    var $standardColWidth = 0;
    var $defaultColWidth = 0;

    function myHex($d) {
        if ($d < 16) return "0" . dechex($d);
        return dechex($d);
    }

    function dumpHexData($data, $pos, $length) {
        $info = "";
        for ($i = 0; $i <= $length; $i++) {
            $info .= ($i==0?"":" ") . $this->myHex(ord($data[$pos + $i])) . (ord($data[$pos + $i])>31? "[" . $data[$pos + $i] . "]":'');
        }
        return $info;
    }

    function getCol($col) {
        if (is_string($col)) {
            $col = strtolower($col);
            if (array_key_exists($col,$this->colnames)) {
                $col = $this->colnames[$col];
            }
        }
        return $col;
    }

    // PUBLIC API FUNCTIONS
    // --------------------

    function val($row,$col,$sheet=0) {
        $col = $this->getCol($col);
        if (array_key_exists($row,$this->sheets[$sheet]['cells']) && array_key_exists($col,$this->sheets[$sheet]['cells'][$row])) {
            return $this->sheets[$sheet]['cells'][$row][$col];
        }
        return "";
    }
    function value($row,$col,$sheet=0) {
        return $this->val($row,$col,$sheet);
    }
    function info($row,$col,$type='',$sheet=0) {
        $col = $this->getCol($col);
        if (array_key_exists('cellsInfo',$this->sheets[$sheet])
                && array_key_exists($row,$this->sheets[$sheet]['cellsInfo'])
                && array_key_exists($col,$this->sheets[$sheet]['cellsInfo'][$row])
                && array_key_exists($type,$this->sheets[$sheet]['cellsInfo'][$row][$col])) {
            return $this->sheets[$sheet]['cellsInfo'][$row][$col][$type];
        }
        return "";
    }
    function type($row,$col,$sheet=0) {
        return $this->info($row,$col,'type',$sheet);
    }
    function raw($row,$col,$sheet=0) {
        return $this->info($row,$col,'raw',$sheet);
    }
    function rowspan($row,$col,$sheet=0) {
        $val = $this->info($row,$col,'rowspan',$sheet);
        if ($val=="") { return 1; }
        return $val;
    }
    function colspan($row,$col,$sheet=0) {
        $val = $this->info($row,$col,'colspan',$sheet);
        if ($val=="") { return 1; }
        return $val;
    }
    function hyperlink($row,$col,$sheet=0) {
        $link = $this->sheets[$sheet]['cellsInfo'][$row][$col]['hyperlink'];
        if ($link) {
            return $link['link'];
        }
        return '';
    }
    function rowcount($sheet=0) {
        return $this->sheets[$sheet]['numRows'];
    }
    function colcount($sheet=0) {
        return $this->sheets[$sheet]['numCols'];
    }
    function colwidth($col,$sheet=0) {
        // Col width is actually the width of the number 0. So we have to estimate and come close
        return $this->colInfo[$sheet][$col]['width']/9142*200;
    }
    function colhidden($col,$sheet=0) {
        return !!$this->colInfo[$sheet][$col]['hidden'];
    }
    function rowheight($row,$sheet=0) {
        return $this->rowInfo[$sheet][$row]['height'];
    }
    function rowhidden($row,$sheet=0) {
        return !!$this->rowInfo[$sheet][$row]['hidden'];
    }

    // GET THE CSS FOR FORMATTING
    // ==========================
    function style($row,$col,$sheet=0,$properties='') {
        $css = "";
        $font=$this->font($row,$col,$sheet);
        if ($font!="") {
            $css .= "font-family:$font;";
        }
        $align=$this->align($row,$col,$sheet);
        if ($align!="") {
            $css .= "text-align:$align;";
        }
        $height=$this->height($row,$col,$sheet);
        if ($height!="") {
            $css .= "font-size:$height"."px;";
        }
        $bgcolor=$this->bgColor($row,$col,$sheet);
        if ($bgcolor!="") {
            $bgcolor = $this->colors[$bgcolor];
            $css .= "background-color:$bgcolor;";
        }
        $color=$this->color($row,$col,$sheet);
        if ($color!="") {
            $css .= "color:$color;";
        }
        $bold=$this->bold($row,$col,$sheet);
        if ($bold) {
            $css .= "font-weight:bold;";
        }
        $italic=$this->italic($row,$col,$sheet);
        if ($italic) {
            $css .= "font-style:italic;";
        }
        $underline=$this->underline($row,$col,$sheet);
        if ($underline) {
            $css .= "text-decoration:underline;";
        }
        // Borders
        $bLeft = $this->borderLeft($row,$col,$sheet);
        $bRight = $this->borderRight($row,$col,$sheet);
        $bTop = $this->borderTop($row,$col,$sheet);
        $bBottom = $this->borderBottom($row,$col,$sheet);
        $bLeftCol = $this->borderLeftColor($row,$col,$sheet);
        $bRightCol = $this->borderRightColor($row,$col,$sheet);
        $bTopCol = $this->borderTopColor($row,$col,$sheet);
        $bBottomCol = $this->borderBottomColor($row,$col,$sheet);
        // Try to output the minimal required style
        if ($bLeft!="" && $bLeft==$bRight && $bRight==$bTop && $bTop==$bBottom) {
            $css .= "border:" . $this->lineStylesCss[$bLeft] .";";
        }
        else {
            if ($bLeft!="") { $css .= "border-left:" . $this->lineStylesCss[$bLeft] .";"; }
            if ($bRight!="") { $css .= "border-right:" . $this->lineStylesCss[$bRight] .";"; }
            if ($bTop!="") { $css .= "border-top:" . $this->lineStylesCss[$bTop] .";"; }
            if ($bBottom!="") { $css .= "border-bottom:" . $this->lineStylesCss[$bBottom] .";"; }
        }
        // Only output border colors if there is an actual border specified
        if ($bLeft!="" && $bLeftCol!="") { $css .= "border-left-color:" . $bLeftCol .";"; }
        if ($bRight!="" && $bRightCol!="") { $css .= "border-right-color:" . $bRightCol .";"; }
        if ($bTop!="" && $bTopCol!="") { $css .= "border-top-color:" . $bTopCol . ";"; }
        if ($bBottom!="" && $bBottomCol!="") { $css .= "border-bottom-color:" . $bBottomCol .";"; }

        return $css;
    }

    // FORMAT PROPERTIES
    // =================
    function format($row,$col,$sheet=0) {
        return $this->info($row,$col,'format',$sheet);
    }
    function formatIndex($row,$col,$sheet=0) {
        return $this->info($row,$col,'formatIndex',$sheet);
    }
    function formatColor($row,$col,$sheet=0) {
        return $this->info($row,$col,'formatColor',$sheet);
    }

    // CELL (XF) PROPERTIES
    // ====================
    function xfRecord($row,$col,$sheet=0) {
        $xfIndex = $this->info($row,$col,'xfIndex',$sheet);
        if ($xfIndex!="") {
            return $this->xfRecords[$xfIndex];
        }
        return null;
    }
    function xfProperty($row,$col,$sheet,$prop) {
        $xfRecord = $this->xfRecord($row,$col,$sheet);
        if ($xfRecord!=null) {
            return $xfRecord[$prop];
        }
        return "";
    }
    function align($row,$col,$sheet=0) {
        return $this->xfProperty($row,$col,$sheet,'align');
    }
    function bgColor($row,$col,$sheet=0) {
        return $this->xfProperty($row,$col,$sheet,'bgColor');
    }
    function borderLeft($row,$col,$sheet=0) {
        return $this->xfProperty($row,$col,$sheet,'borderLeft');
    }
    function borderRight($row,$col,$sheet=0) {
        return $this->xfProperty($row,$col,$sheet,'borderRight');
    }
    function borderTop($row,$col,$sheet=0) {
        return $this->xfProperty($row,$col,$sheet,'borderTop');
    }
    function borderBottom($row,$col,$sheet=0) {
        return $this->xfProperty($row,$col,$sheet,'borderBottom');
    }
    function borderLeftColor($row,$col,$sheet=0) {
        return $this->colors[$this->xfProperty($row,$col,$sheet,'borderLeftColor')];
    }
    function borderRightColor($row,$col,$sheet=0) {
        return $this->colors[$this->xfProperty($row,$col,$sheet,'borderRightColor')];
    }
    function borderTopColor($row,$col,$sheet=0) {
        return $this->colors[$this->xfProperty($row,$col,$sheet,'borderTopColor')];
    }
    function borderBottomColor($row,$col,$sheet=0) {
        return $this->colors[$this->xfProperty($row,$col,$sheet,'borderBottomColor')];
    }

    // FONT PROPERTIES
    // ===============
    function fontRecord($row,$col,$sheet=0) {
        $xfRecord = $this->xfRecord($row,$col,$sheet);
        if ($xfRecord!=null) {
            $font = $xfRecord['fontIndex'];
            if ($font!=null) {
                return $this->fontRecords[$font];
            }
        }
        return null;
    }
    function fontProperty($row,$col,$sheet=0,$prop) {
        $font = $this->fontRecord($row,$col,$sheet);
        if ($font!=null) {
            return $font[$prop];
        }
        return false;
    }
    function fontIndex($row,$col,$sheet=0) {
        return $this->xfProperty($row,$col,$sheet,'fontIndex');
    }
    function color($row,$col,$sheet=0) {
        $formatColor = $this->formatColor($row,$col,$sheet);
        if ($formatColor!="") {
            return $formatColor;
        }
        $ci = $this->fontProperty($row,$col,$sheet,'color');
                return $this->rawColor($ci);
        }
        function rawColor($ci) {
        if (($ci <> 0x7FFF) && ($ci <> '')) {
            return $this->colors[$ci];
        }
        return "";
    }
    function bold($row,$col,$sheet=0) {
        return $this->fontProperty($row,$col,$sheet,'bold');
    }
    function italic($row,$col,$sheet=0) {
        return $this->fontProperty($row,$col,$sheet,'italic');
    }
    function underline($row,$col,$sheet=0) {
        return $this->fontProperty($row,$col,$sheet,'under');
    }
    function height($row,$col,$sheet=0) {
        return $this->fontProperty($row,$col,$sheet,'height');
    }
    function font($row,$col,$sheet=0) {
        return $this->fontProperty($row,$col,$sheet,'font');
    }

    // DUMP AN HTML TABLE OF THE ENTIRE XLS DATA
    // =========================================
    function dump($row_numbers=false,$col_letters=false,$sheet=0,$table_class='excel') {
        $out = "<table class=\"$table_class\" cellspacing=0>";
        if ($col_letters) {
            $out .= "<thead>\n\t<tr>";
            if ($row_numbers) {
                $out .= "\n\t\t<th>&nbsp</th>";
            }
            for($i=1;$i<=$this->colcount($sheet);$i++) {
                $style = "width:" . ($this->colwidth($i,$sheet)*1) . "px;";
                if ($this->colhidden($i,$sheet)) {
                    $style .= "display:none;";
                }
                $out .= "\n\t\t<th style=\"$style\">" . strtoupper($this->colindexes[$i]) . "</th>";
            }
            $out .= "</tr></thead>\n";
        }

        $out .= "<tbody>\n";
        for($row=1;$row<=$this->rowcount($sheet);$row++) {
            $rowheight = $this->rowheight($row,$sheet);
            $style = "height:" . ($rowheight*(4/3)) . "px;";
            if ($this->rowhidden($row,$sheet)) {
                $style .= "display:none;";
            }
            $out .= "\n\t<tr style=\"$style\">";
            if ($row_numbers) {
                $out .= "\n\t\t<th>$row</th>";
            }
            for($col=1;$col<=$this->colcount($sheet);$col++) {
                // Account for Rowspans/Colspans
                $rowspan = $this->rowspan($row,$col,$sheet);
                $colspan = $this->colspan($row,$col,$sheet);
                for($i=0;$i<$rowspan;$i++) {
                    for($j=0;$j<$colspan;$j++) {
                        if ($i>0 || $j>0) {
                            $this->sheets[$sheet]['cellsInfo'][$row+$i][$col+$j]['dontprint']=1;
                        }
                    }
                }
                if(!$this->sheets[$sheet]['cellsInfo'][$row][$col]['dontprint']) {
                    $style = $this->style($row,$col,$sheet);
                    if ($this->colhidden($col,$sheet)) {
                        $style .= "display:none;";
                    }
                    $out .= "\n\t\t<td style=\"$style\"" . ($colspan > 1?" colspan=$colspan":"") . ($rowspan > 1?" rowspan=$rowspan":"") . ">";
                    $val = $this->val($row,$col,$sheet);
                    if ($val=='') { $val="&nbsp;"; }
                    else {
                        $val = htmlentities($val);
                        $link = $this->hyperlink($row,$col,$sheet);
                        if ($link!='') {
                            $val = "<a href=\"$link\">$val</a>";
                        }
                    }
                    $out .= "<nobr>".nl2br($val)."</nobr>";
                    $out .= "</td>";
                }
            }
            $out .= "</tr>\n";
        }
        $out .= "</tbody></table>";
        return $out;
    }

    // --------------
    // END PUBLIC API


    var $boundsheets = array();
    var $formatRecords = array();
    var $fontRecords = array();
    var $xfRecords = array();
    var $colInfo = array();
    var $rowInfo = array();

    var $sst = array();
    var $sheets = array();

    var $data;
    var $_ole;
    var $_defaultEncoding = "UTF-8";
    var $_defaultFormat = SPREADSHEET_EXCEL_READER_DEF_NUM_FORMAT;
    var $_columnsFormat = array();
    var $_rowoffset = 1;
    var $_coloffset = 1;

    /**
     * List of default date formats used by Excel
     */
    var $dateFormats = array (
        0xe => "m/d/Y",
        0xf => "M-d-Y",
        0x10 => "d-M",
        0x11 => "M-Y",
        0x12 => "h:i a",
        0x13 => "h:i:s a",
        0x14 => "H:i",
        0x15 => "H:i:s",
        0x16 => "d/m/Y H:i",
        0x2d => "i:s",
        0x2e => "H:i:s",
        0x2f => "i:s.S"
    );

    /**
     * Default number formats used by Excel
     */
    var $numberFormats = array(
        0x1 => "0",
        0x2 => "0.00",
        0x3 => "#,##0",
        0x4 => "#,##0.00",
        0x5 => "\$#,##0;(\$#,##0)",
        0x6 => "\$#,##0;[Red](\$#,##0)",
        0x7 => "\$#,##0.00;(\$#,##0.00)",
        0x8 => "\$#,##0.00;[Red](\$#,##0.00)",
        0x9 => "0%",
        0xa => "0.00%",
        0xb => "0.00E+00",
        0x25 => "#,##0;(#,##0)",
        0x26 => "#,##0;[Red](#,##0)",
        0x27 => "#,##0.00;(#,##0.00)",
        0x28 => "#,##0.00;[Red](#,##0.00)",
        0x29 => "#,##0;(#,##0)",  // Not exactly
        0x2a => "\$#,##0;(\$#,##0)",  // Not exactly
        0x2b => "#,##0.00;(#,##0.00)",  // Not exactly
        0x2c => "\$#,##0.00;(\$#,##0.00)",  // Not exactly
        0x30 => "##0.0E+0"
    );

    var $colors = Array(
        0x00 => "#000000",
        0x01 => "#FFFFFF",
        0x02 => "#FF0000",
        0x03 => "#00FF00",
        0x04 => "#0000FF",
        0x05 => "#FFFF00",
        0x06 => "#FF00FF",
        0x07 => "#00FFFF",
        0x08 => "#000000",
        0x09 => "#FFFFFF",
        0x0A => "#FF0000",
        0x0B => "#00FF00",
        0x0C => "#0000FF",
        0x0D => "#FFFF00",
        0x0E => "#FF00FF",
        0x0F => "#00FFFF",
        0x10 => "#800000",
        0x11 => "#008000",
        0x12 => "#000080",
        0x13 => "#808000",
        0x14 => "#800080",
        0x15 => "#008080",
        0x16 => "#C0C0C0",
        0x17 => "#808080",
        0x18 => "#9999FF",
        0x19 => "#993366",
        0x1A => "#FFFFCC",
        0x1B => "#CCFFFF",
        0x1C => "#660066",
        0x1D => "#FF8080",
        0x1E => "#0066CC",
        0x1F => "#CCCCFF",
        0x20 => "#000080",
        0x21 => "#FF00FF",
        0x22 => "#FFFF00",
        0x23 => "#00FFFF",
        0x24 => "#800080",
        0x25 => "#800000",
        0x26 => "#008080",
        0x27 => "#0000FF",
        0x28 => "#00CCFF",
        0x29 => "#CCFFFF",
        0x2A => "#CCFFCC",
        0x2B => "#FFFF99",
        0x2C => "#99CCFF",
        0x2D => "#FF99CC",
        0x2E => "#CC99FF",
        0x2F => "#FFCC99",
        0x30 => "#3366FF",
        0x31 => "#33CCCC",
        0x32 => "#99CC00",
        0x33 => "#FFCC00",
        0x34 => "#FF9900",
        0x35 => "#FF6600",
        0x36 => "#666699",
        0x37 => "#969696",
        0x38 => "#003366",
        0x39 => "#339966",
        0x3A => "#003300",
        0x3B => "#333300",
        0x3C => "#993300",
        0x3D => "#993366",
        0x3E => "#333399",
        0x3F => "#333333",
        0x40 => "#000000",
        0x41 => "#FFFFFF",

        0x43 => "#000000",
        0x4D => "#000000",
        0x4E => "#FFFFFF",
        0x4F => "#000000",
        0x50 => "#FFFFFF",
        0x51 => "#000000",

        0x7FFF => "#000000"
    );

    var $lineStyles = array(
        0x00 => "",
        0x01 => "Thin",
        0x02 => "Medium",
        0x03 => "Dashed",
        0x04 => "Dotted",
        0x05 => "Thick",
        0x06 => "Double",
        0x07 => "Hair",
        0x08 => "Medium dashed",
        0x09 => "Thin dash-dotted",
        0x0A => "Medium dash-dotted",
        0x0B => "Thin dash-dot-dotted",
        0x0C => "Medium dash-dot-dotted",
        0x0D => "Slanted medium dash-dotted"
    );

    var $lineStylesCss = array(
        "Thin" => "1px solid",
        "Medium" => "2px solid",
        "Dashed" => "1px dashed",
        "Dotted" => "1px dotted",
        "Thick" => "3px solid",
        "Double" => "double",
        "Hair" => "1px solid",
        "Medium dashed" => "2px dashed",
        "Thin dash-dotted" => "1px dashed",
        "Medium dash-dotted" => "2px dashed",
        "Thin dash-dot-dotted" => "1px dashed",
        "Medium dash-dot-dotted" => "2px dashed",
        "Slanted medium dash-dotte" => "2px dashed"
    );

    function read16bitstring($data, $start) {
        $len = 0;
        while (ord($data[$start + $len]) + ord($data[$start + $len + 1]) > 0) $len++;
        return substr($data, $start, $len);
    }

    // ADDED by Matt Kruse for better formatting
    function _format_value($format,$num,$f) {
        // 49==TEXT format
        // http://code.google.com/p/php-excel-reader/issues/detail?id=7
        if ( (!$f && $format=="%s") || ($f==49) || ($format=="GENERAL") ) {
            return array('string'=>$num, 'formatColor'=>null);
        }

        // Custom pattern can be POSITIVE;NEGATIVE;ZERO
        // The "text" option as 4th parameter is not handled
        $parts = explode(";",$format);
        $pattern = $parts[0];
        // Negative pattern
        if (count($parts)>2 && $num==0) {
            $pattern = $parts[2];
        }
        // Zero pattern
        if (count($parts)>1 && $num<0) {
            $pattern = $parts[1];
            $num = abs($num);
        }

        $color = "";
        $matches = array();
        $color_regex = "/^\[(BLACK|BLUE|CYAN|GREEN|MAGENTA|RED|WHITE|YELLOW)\]/i";
        if (preg_match($color_regex,$pattern,$matches)) {
            $color = strtolower($matches[1]);
            $pattern = preg_replace($color_regex,"",$pattern);
        }

        // In Excel formats, "_" is used to add spacing, which we can't do in HTML
        $pattern = preg_replace("/_./","",$pattern);

        // Some non-number characters are escaped with \, which we don't need
        $pattern = preg_replace("/\\\/","",$pattern);

        // Some non-number strings are quoted, so we'll get rid of the quotes
        $pattern = preg_replace("/\"/","",$pattern);

        // TEMPORARY - Convert # to 0
        $pattern = preg_replace("/\#/","0",$pattern);

        // Find out if we need comma formatting
        $has_commas = preg_match("/,/",$pattern);
        if ($has_commas) {
            $pattern = preg_replace("/,/","",$pattern);
        }

        // Handle Percentages
        if (preg_match("/\d(\%)([^\%]|$)/",$pattern,$matches)) {
            $num = $num * 100;
            $pattern = preg_replace("/(\d)(\%)([^\%]|$)/","$1%$3",$pattern);
        }

        // Handle the number itself
        $number_regex = "/(\d+)(\.?)(\d*)/";
        if (preg_match($number_regex,$pattern,$matches)) {
            $left = $matches[1];
            $dec = $matches[2];
            $right = $matches[3];
            if ($has_commas) {
                $formatted = number_format($num,strlen($right));
            }
            else {
                $sprintf_pattern = "%1.".strlen($right)."f";
                $formatted = sprintf($sprintf_pattern, $num);
            }
            $pattern = preg_replace($number_regex, $formatted, $pattern);
        }

        return array(
            'string'=>$pattern,
            'formatColor'=>$color
        );
    }

    /**
     * Constructor
     *
     * Some basic initialisation
     */
    function Spreadsheet_Excel_Reader($file='',$store_extended_info=true,$outputEncoding='') {
        $t = new OLERead();
        $this->_ole =& $t;
        $this->setUTFEncoder('iconv');
        if ($outputEncoding != '') {
            $this->setOutputEncoding($outputEncoding);
        }
        for ($i=1; $i<245; $i++) {
            $name = strtolower(( (($i-1)/26>=1)?chr(($i-1)/26+64):'') . chr(($i-1)%26+65));
            $this->colnames[$name] = $i;
            $this->colindexes[$i] = $name;
        }
        $this->store_extended_info = $store_extended_info;
        if ($file!="") {
            $this->read($file);
        }
    }

    /**
     * Set the encoding method
     */
    function setOutputEncoding($encoding) {
        $this->_defaultEncoding = $encoding;
    }

    /**
     *  $encoder = 'iconv' or 'mb'
     *  set iconv if you would like use 'iconv' for encode UTF-16LE to your encoding
     *  set mb if you would like use 'mb_convert_encoding' for encode UTF-16LE to your encoding
     */
    function setUTFEncoder($encoder = 'iconv') {
        $this->_encoderFunction = '';
        if ($encoder == 'iconv') {
            $this->_encoderFunction = function_exists('iconv') ? 'iconv' : '';
        } elseif ($encoder == 'mb') {
            $this->_encoderFunction = function_exists('mb_convert_encoding') ? 'mb_convert_encoding' : '';
        }
    }

    function setRowColOffset($iOffset) {
        $this->_rowoffset = $iOffset;
        $this->_coloffset = $iOffset;
    }

    /**
     * Set the default number format
     */
    function setDefaultFormat($sFormat) {
        $this->_defaultFormat = $sFormat;
    }

    /**
     * Force a column to use a certain format
     */
    function setColumnFormat($column, $sFormat) {
        $this->_columnsFormat[$column] = $sFormat;
    }

    /**
     * Read the spreadsheet file using OLE, then parse
     */
    function read($sFileName) {
        $res = $this->_ole->read($sFileName);

        // oops, something goes wrong (Darko Miljanovic)
        if($res === false) {
            // check error code
            if($this->_ole->error == 1) {
                // bad file
                die('The filename ' . $sFileName . ' is not readable');
            }
            // check other error codes here (eg bad fileformat, etc...)
        }
        $this->data = $this->_ole->getWorkBook();
        $this->_parse();
    }

    /**
     * Parse a workbook
     *
     * @access private
     * @return bool
     */
    function _parse() {
        $pos = 0;
        $data = $this->data;

        $code = v($data,$pos);
        $length = v($data,$pos+2);
        $version = v($data,$pos+4);
        $substreamType = v($data,$pos+6);

        $this->version = $version;

        if (($version != SPREADSHEET_EXCEL_READER_BIFF8) &&
            ($version != SPREADSHEET_EXCEL_READER_BIFF7)) {
            return false;
        }

        if ($substreamType != SPREADSHEET_EXCEL_READER_WORKBOOKGLOBALS){
            return false;
        }

        $pos += $length + 4;

        $code = v($data,$pos);
        $length = v($data,$pos+2);

        while ($code != SPREADSHEET_EXCEL_READER_TYPE_EOF) {
            switch ($code) {
                case SPREADSHEET_EXCEL_READER_TYPE_SST:
                    $spos = $pos + 4;
                    $limitpos = $spos + $length;
                    $uniqueStrings = $this->_GetInt4d($data, $spos+4);
                    $spos += 8;
                    for ($i = 0; $i < $uniqueStrings; $i++) {
                        // Read in the number of characters
                        if ($spos == $limitpos) {
                            $opcode = v($data,$spos);
                            $conlength = v($data,$spos+2);
                            if ($opcode != 0x3c) {
                                return -1;
                            }
                            $spos += 4;
                            $limitpos = $spos + $conlength;
                        }
                        $numChars = ord($data[$spos]) | (ord($data[$spos+1]) << 8);
                        $spos += 2;
                        $optionFlags = ord($data[$spos]);
                        $spos++;
                        $asciiEncoding = (($optionFlags & 0x01) == 0) ;
                        $extendedString = ( ($optionFlags & 0x04) != 0);

                        // See if string contains formatting information
                        $richString = ( ($optionFlags & 0x08) != 0);

                        if ($richString) {
                            // Read in the crun
                            $formattingRuns = v($data,$spos);
                            $spos += 2;
                        }

                        if ($extendedString) {
                            // Read in cchExtRst
                            $extendedRunLength = $this->_GetInt4d($data, $spos);
                            $spos += 4;
                        }

                        $len = ($asciiEncoding)? $numChars : $numChars*2;
                        if ($spos + $len < $limitpos) {
                            $retstr = substr($data, $spos, $len);
                            $spos += $len;
                        }
                        else{
                            // found countinue
                            $retstr = substr($data, $spos, $limitpos - $spos);
                            $bytesRead = $limitpos - $spos;
                            $charsLeft = $numChars - (($asciiEncoding) ? $bytesRead : ($bytesRead / 2));
                            $spos = $limitpos;

                            while ($charsLeft > 0){
                                $opcode = v($data,$spos);
                                $conlength = v($data,$spos+2);
                                if ($opcode != 0x3c) {
                                    return -1;
                                }
                                $spos += 4;
                                $limitpos = $spos + $conlength;
                                $option = ord($data[$spos]);
                                $spos += 1;
                                if ($asciiEncoding && ($option == 0)) {
                                    $len = min($charsLeft, $limitpos - $spos); // min($charsLeft, $conlength);
                                    $retstr .= substr($data, $spos, $len);
                                    $charsLeft -= $len;
                                    $asciiEncoding = true;
                                }
                                elseif (!$asciiEncoding && ($option != 0)) {
                                    $len = min($charsLeft * 2, $limitpos - $spos); // min($charsLeft, $conlength);
                                    $retstr .= substr($data, $spos, $len);
                                    $charsLeft -= $len/2;
                                    $asciiEncoding = false;
                                }
                                elseif (!$asciiEncoding && ($option == 0)) {
                                    // Bummer - the string starts off as Unicode, but after the
                                    // continuation it is in straightforward ASCII encoding
                                    $len = min($charsLeft, $limitpos - $spos); // min($charsLeft, $conlength);
                                    for ($j = 0; $j < $len; $j++) {
                                        $retstr .= $data[$spos + $j].chr(0);
                                    }
                                    $charsLeft -= $len;
                                    $asciiEncoding = false;
                                }
                                else{
                                    $newstr = '';
                                    for ($j = 0; $j < strlen($retstr); $j++) {
                                        $newstr = $retstr[$j].chr(0);
                                    }
                                    $retstr = $newstr;
                                    $len = min($charsLeft * 2, $limitpos - $spos); // min($charsLeft, $conlength);
                                    $retstr .= substr($data, $spos, $len);
                                    $charsLeft -= $len/2;
                                    $asciiEncoding = false;
                                }
                                $spos += $len;
                            }
                        }
                        $retstr = ($asciiEncoding) ? $retstr : $this->_encodeUTF16($retstr);

                        if ($richString){
                            $spos += 4 * $formattingRuns;
                        }

                        // For extended strings, skip over the extended string data
                        if ($extendedString) {
                            $spos += $extendedRunLength;
                        }
                        $this->sst[]=$retstr;
                    }
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_FILEPASS:
                    return false;
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_NAME:
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_FORMAT:
                    $indexCode = v($data,$pos+4);
                    if ($version == SPREADSHEET_EXCEL_READER_BIFF8) {
                        $numchars = v($data,$pos+6);
                        if (ord($data[$pos+8]) == 0){
                            $formatString = substr($data, $pos+9, $numchars);
                        } else {
                            $formatString = substr($data, $pos+9, $numchars*2);
                        }
                    } else {
                        $numchars = ord($data[$pos+6]);
                        $formatString = substr($data, $pos+7, $numchars*2);
                    }
                    $this->formatRecords[$indexCode] = $formatString;
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_FONT:
                        $height = v($data,$pos+4);
                        $option = v($data,$pos+6);
                        $color = v($data,$pos+8);
                        $weight = v($data,$pos+10);
                        $under  = ord($data[$pos+14]);
                        $font = "";
                        // Font name
                        $numchars = ord($data[$pos+18]);
                        if ((ord($data[$pos+19]) & 1) == 0){
                            $font = substr($data, $pos+20, $numchars);
                        } else {
                            $font = substr($data, $pos+20, $numchars*2);
                            $font =  $this->_encodeUTF16($font);
                        }
                        $this->fontRecords[] = array(
                                'height' => $height / 20,
                                'italic' => !!($option & 2),
                                'color' => $color,
                                'under' => !($under==0),
                                'bold' => ($weight==700),
                                'font' => $font,
                                'raw' => $this->dumpHexData($data, $pos+3, $length)
                                );
                        break;

                case SPREADSHEET_EXCEL_READER_TYPE_PALETTE:
                        $colors = ord($data[$pos+4]) | ord($data[$pos+5]) << 8;
                        for ($coli = 0; $coli < $colors; $coli++) {
                            $colOff = $pos + 2 + ($coli * 4);
                            $colr = ord($data[$colOff]);
                            $colg = ord($data[$colOff+1]);
                            $colb = ord($data[$colOff+2]);
                            $this->colors[0x07 + $coli] = '#' . $this->myhex($colr) . $this->myhex($colg) . $this->myhex($colb);
                        }
                        break;

                case SPREADSHEET_EXCEL_READER_TYPE_XF:
                        $fontIndexCode = (ord($data[$pos+4]) | ord($data[$pos+5]) << 8) - 1;
                        $fontIndexCode = max(0,$fontIndexCode);
                        $indexCode = ord($data[$pos+6]) | ord($data[$pos+7]) << 8;
                        $alignbit = ord($data[$pos+10]) & 3;
                        $bgi = (ord($data[$pos+22]) | ord($data[$pos+23]) << 8) & 0x3FFF;
                        $bgcolor = ($bgi & 0x7F);
//                      $bgcolor = ($bgi & 0x3f80) >> 7;
                        $align = "";
                        if ($alignbit==3) { $align="right"; }
                        if ($alignbit==2) { $align="center"; }

                        $fillPattern = (ord($data[$pos+21]) & 0xFC) >> 2;
                        if ($fillPattern == 0) {
                            $bgcolor = "";
                        }

                        $xf = array();
                        $xf['formatIndex'] = $indexCode;
                        $xf['align'] = $align;
                        $xf['fontIndex'] = $fontIndexCode;
                        $xf['bgColor'] = $bgcolor;
                        $xf['fillPattern'] = $fillPattern;

                        $border = ord($data[$pos+14]) | (ord($data[$pos+15]) << 8) | (ord($data[$pos+16]) << 16) | (ord($data[$pos+17]) << 24);
                        $xf['borderLeft'] = $this->lineStyles[($border & 0xF)];
                        $xf['borderRight'] = $this->lineStyles[($border & 0xF0) >> 4];
                        $xf['borderTop'] = $this->lineStyles[($border & 0xF00) >> 8];
                        $xf['borderBottom'] = $this->lineStyles[($border & 0xF000) >> 12];

                        $xf['borderLeftColor'] = ($border & 0x7F0000) >> 16;
                        $xf['borderRightColor'] = ($border & 0x3F800000) >> 23;
                        $border = (ord($data[$pos+18]) | ord($data[$pos+19]) << 8);

                        $xf['borderTopColor'] = ($border & 0x7F);
                        $xf['borderBottomColor'] = ($border & 0x3F80) >> 7;

                        if (array_key_exists($indexCode, $this->dateFormats)) {
                            $xf['type'] = 'date';
                            $xf['format'] = $this->dateFormats[$indexCode];
                            if ($align=='') { $xf['align'] = 'right'; }
                        }elseif (array_key_exists($indexCode, $this->numberFormats)) {
                            $xf['type'] = 'number';
                            $xf['format'] = $this->numberFormats[$indexCode];
                            if ($align=='') { $xf['align'] = 'right'; }
                        }else{
                            $isdate = FALSE;
                            $formatstr = '';
                            if ($indexCode > 0){
                                if (isset($this->formatRecords[$indexCode]))
                                    $formatstr = $this->formatRecords[$indexCode];
                                if ($formatstr!="") {
                                    $tmp = preg_replace("/\;.*/","",$formatstr);
                                    $tmp = preg_replace("/^\[[^\]]*\]/","",$tmp);
                                    if (preg_match("/[^hmsday\/\-:\s\\\,AMP]/i", $tmp) == 0) { // found day and time format
                                        $isdate = TRUE;
                                        $formatstr = $tmp;
                                        $formatstr = str_replace(array('AM/PM','mmmm','mmm'), array('a','F','M'), $formatstr);
                                        // m/mm are used for both minutes and months - oh SNAP!
                                        // This mess tries to fix for that.
                                        // 'm' == minutes only if following h/hh or preceding s/ss
                                        $formatstr = preg_replace("/(h:?)mm?/","$1i", $formatstr);
                                        $formatstr = preg_replace("/mm?(:?s)/","i$1", $formatstr);
                                        // A single 'm' = n in PHP
                                        $formatstr = preg_replace("/(^|[^m])m([^m]|$)/", '$1n$2', $formatstr);
                                        $formatstr = preg_replace("/(^|[^m])m([^m]|$)/", '$1n$2', $formatstr);
                                        // else it's months
                                        $formatstr = str_replace('mm', 'm', $formatstr);
                                        // Convert single 'd' to 'j'
                                        $formatstr = preg_replace("/(^|[^d])d([^d]|$)/", '$1j$2', $formatstr);
                                        $formatstr = str_replace(array('dddd','ddd','dd','yyyy','yy','hh','h'), array('l','D','d','Y','y','H','g'), $formatstr);
                                        $formatstr = preg_replace("/ss?/", 's', $formatstr);
                                    }
                                }
                            }
                            if ($isdate){
                                $xf['type'] = 'date';
                                $xf['format'] = $formatstr;
                                if ($align=='') { $xf['align'] = 'right'; }
                            }else{
                                // If the format string has a 0 or # in it, we'll assume it's a number
                                if (preg_match("/[0#]/", $formatstr)) {
                                    $xf['type'] = 'number';
                                    if ($align=='') { $xf['align']='right'; }
                                }
                                else {
                                $xf['type'] = 'other';
                                }
                                $xf['format'] = $formatstr;
                                $xf['code'] = $indexCode;
                            }
                        }
                        $this->xfRecords[] = $xf;
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_NINETEENFOUR:
                    $this->nineteenFour = (ord($data[$pos+4]) == 1);
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_BOUNDSHEET:
                        $rec_offset = $this->_GetInt4d($data, $pos+4);
                        $rec_typeFlag = ord($data[$pos+8]);
                        $rec_visibilityFlag = ord($data[$pos+9]);
                        $rec_length = ord($data[$pos+10]);

                        if ($version == SPREADSHEET_EXCEL_READER_BIFF8){
                            $chartype =  ord($data[$pos+11]);
                            if ($chartype == 0){
                                $rec_name   = substr($data, $pos+12, $rec_length);
                            } else {
                                $rec_name   = $this->_encodeUTF16(substr($data, $pos+12, $rec_length*2));
                            }
                        }elseif ($version == SPREADSHEET_EXCEL_READER_BIFF7){
                                $rec_name   = substr($data, $pos+11, $rec_length);
                        }
                    $this->boundsheets[] = array('name'=>$rec_name,'offset'=>$rec_offset);
                    break;

            }

            $pos += $length + 4;
            $code = ord($data[$pos]) | ord($data[$pos+1])<<8;
            $length = ord($data[$pos+2]) | ord($data[$pos+3])<<8;
        }

        foreach ($this->boundsheets as $key=>$val){
            $this->sn = $key;
            $this->_parsesheet($val['offset']);
        }
        return true;
    }

    /**
     * Parse a worksheet
     */
    function _parsesheet($spos) {
        $cont = true;
        $data = $this->data;
        // read BOF
        $code = ord($data[$spos]) | ord($data[$spos+1])<<8;
        $length = ord($data[$spos+2]) | ord($data[$spos+3])<<8;

        $version = ord($data[$spos + 4]) | ord($data[$spos + 5])<<8;
        $substreamType = ord($data[$spos + 6]) | ord($data[$spos + 7])<<8;

        if (($version != SPREADSHEET_EXCEL_READER_BIFF8) && ($version != SPREADSHEET_EXCEL_READER_BIFF7)) {
            return -1;
        }

        if ($substreamType != SPREADSHEET_EXCEL_READER_WORKSHEET){
            return -2;
        }
        $spos += $length + 4;
        while($cont) {
            $lowcode = ord($data[$spos]);
            if ($lowcode == SPREADSHEET_EXCEL_READER_TYPE_EOF) break;
            $code = $lowcode | ord($data[$spos+1])<<8;
            $length = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
            $spos += 4;
            $this->sheets[$this->sn]['maxrow'] = $this->_rowoffset - 1;
            $this->sheets[$this->sn]['maxcol'] = $this->_coloffset - 1;
            unset($this->rectype);
            switch ($code) {
                case SPREADSHEET_EXCEL_READER_TYPE_DIMENSION:
                    if (!isset($this->numRows)) {
                        if (($length == 10) ||  ($version == SPREADSHEET_EXCEL_READER_BIFF7)){
                            $this->sheets[$this->sn]['numRows'] = ord($data[$spos+2]) | ord($data[$spos+3]) << 8;
                            $this->sheets[$this->sn]['numCols'] = ord($data[$spos+6]) | ord($data[$spos+7]) << 8;
                        } else {
                            $this->sheets[$this->sn]['numRows'] = ord($data[$spos+4]) | ord($data[$spos+5]) << 8;
                            $this->sheets[$this->sn]['numCols'] = ord($data[$spos+10]) | ord($data[$spos+11]) << 8;
                        }
                    }
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_MERGEDCELLS:
                    $cellRanges = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    for ($i = 0; $i < $cellRanges; $i++) {
                        $fr =  ord($data[$spos + 8*$i + 2]) | ord($data[$spos + 8*$i + 3])<<8;
                        $lr =  ord($data[$spos + 8*$i + 4]) | ord($data[$spos + 8*$i + 5])<<8;
                        $fc =  ord($data[$spos + 8*$i + 6]) | ord($data[$spos + 8*$i + 7])<<8;
                        $lc =  ord($data[$spos + 8*$i + 8]) | ord($data[$spos + 8*$i + 9])<<8;
                        if ($lr - $fr > 0) {
                            $this->sheets[$this->sn]['cellsInfo'][$fr+1][$fc+1]['rowspan'] = $lr - $fr + 1;
                        }
                        if ($lc - $fc > 0) {
                            $this->sheets[$this->sn]['cellsInfo'][$fr+1][$fc+1]['colspan'] = $lc - $fc + 1;
                        }
                    }
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_RK:
                case SPREADSHEET_EXCEL_READER_TYPE_RK2:
                    $row = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $column = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
                    $rknum = $this->_GetInt4d($data, $spos + 6);
                    $numValue = $this->_GetIEEE754($rknum);
                    $info = $this->_getCellDetails($spos,$numValue,$column);
                    $this->addcell($row, $column, $info['string'],$info);
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_LABELSST:
                    $row        = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $column  = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
                    $xfindex    = ord($data[$spos+4]) | ord($data[$spos+5])<<8;
                    $index  = $this->_GetInt4d($data, $spos + 6);
                    $this->addcell($row, $column, $this->sst[$index], array('xfIndex'=>$xfindex) );
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_MULRK:
                    $row        = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $colFirst   = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
                    $colLast    = ord($data[$spos + $length - 2]) | ord($data[$spos + $length - 1])<<8;
                    $columns    = $colLast - $colFirst + 1;
                    $tmppos = $spos+4;
                    for ($i = 0; $i < $columns; $i++) {
                        $numValue = $this->_GetIEEE754($this->_GetInt4d($data, $tmppos + 2));
                        $info = $this->_getCellDetails($tmppos-4,$numValue,$colFirst + $i + 1);
                        $tmppos += 6;
                        $this->addcell($row, $colFirst + $i, $info['string'], $info);
                    }
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_NUMBER:
                    $row    = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $column = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
                    $tmp = unpack("ddouble", substr($data, $spos + 6, 8)); // It machine machine dependent
                    if ($this->isDate($spos)) {
                        $numValue = $tmp['double'];
                    }
                    else {
                        $numValue = $this->createNumber($spos);
                    }
                    $info = $this->_getCellDetails($spos,$numValue,$column);
                    $this->addcell($row, $column, $info['string'], $info);
                    break;

                case SPREADSHEET_EXCEL_READER_TYPE_FORMULA:
                case SPREADSHEET_EXCEL_READER_TYPE_FORMULA2:
                    $row    = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $column = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
                    if ((ord($data[$spos+6])==0) && (ord($data[$spos+12])==255) && (ord($data[$spos+13])==255)) {
                        //String formula. Result follows in a STRING record
                        // This row/col are stored to be referenced in that record
                        // http://code.google.com/p/php-excel-reader/issues/detail?id=4
                        $previousRow = $row;
                        $previousCol = $column;
                    } elseif ((ord($data[$spos+6])==1) && (ord($data[$spos+12])==255) && (ord($data[$spos+13])==255)) {
                        //Boolean formula. Result is in +2; 0=false,1=true
                        // http://code.google.com/p/php-excel-reader/issues/detail?id=4
                        if (ord($this->data[$spos+8])==1) {
                            $this->addcell($row, $column, "TRUE");
                        } else {
                            $this->addcell($row, $column, "FALSE");
                        }
                    } elseif ((ord($data[$spos+6])==2) && (ord($data[$spos+12])==255) && (ord($data[$spos+13])==255)) {
                        //Error formula. Error code is in +2;
                    } elseif ((ord($data[$spos+6])==3) && (ord($data[$spos+12])==255) && (ord($data[$spos+13])==255)) {
                        //Formula result is a null string.
                        $this->addcell($row, $column, '');
                    } else {
                        // result is a number, so first 14 bytes are just like a _NUMBER record
                        $tmp = unpack("ddouble", substr($data, $spos + 6, 8)); // It machine machine dependent
                              if ($this->isDate($spos)) {
                                $numValue = $tmp['double'];
                              }
                              else {
                                $numValue = $this->createNumber($spos);
                              }
                        $info = $this->_getCellDetails($spos,$numValue,$column);
                        $this->addcell($row, $column, $info['string'], $info);
                    }
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_BOOLERR:
                    $row    = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $column = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
                    $string = ord($data[$spos+6]);
                    $this->addcell($row, $column, $string);
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_STRING:
                    // http://code.google.com/p/php-excel-reader/issues/detail?id=4
                    if ($version == SPREADSHEET_EXCEL_READER_BIFF8){
                        // Unicode 16 string, like an SST record
                        $xpos = $spos;
                        $numChars =ord($data[$xpos]) | (ord($data[$xpos+1]) << 8);
                        $xpos += 2;
                        $optionFlags =ord($data[$xpos]);
                        $xpos++;
                        $asciiEncoding = (($optionFlags &0x01) == 0) ;
                        $extendedString = (($optionFlags & 0x04) != 0);
                        // See if string contains formatting information
                        $richString = (($optionFlags & 0x08) != 0);
                        if ($richString) {
                            // Read in the crun
                            $formattingRuns =ord($data[$xpos]) | (ord($data[$xpos+1]) << 8);
                            $xpos += 2;
                        }
                        if ($extendedString) {
                            // Read in cchExtRst
                            $extendedRunLength =$this->_GetInt4d($this->data, $xpos);
                            $xpos += 4;
                        }
                        $len = ($asciiEncoding)?$numChars : $numChars*2;
                        $retstr =substr($data, $xpos, $len);
                        $xpos += $len;
                        $retstr = ($asciiEncoding)? $retstr : $this->_encodeUTF16($retstr);
                    }
                    elseif ($version == SPREADSHEET_EXCEL_READER_BIFF7){
                        // Simple byte string
                        $xpos = $spos;
                        $numChars =ord($data[$xpos]) | (ord($data[$xpos+1]) << 8);
                        $xpos += 2;
                        $retstr =substr($data, $xpos, $numChars);
                    }
                    $this->addcell($previousRow, $previousCol, $retstr);
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_ROW:
                    $row    = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $rowInfo = ord($data[$spos + 6]) | ((ord($data[$spos+7]) << 8) & 0x7FFF);
                    if (($rowInfo & 0x8000) > 0) {
                        $rowHeight = -1;
                    } else {
                        $rowHeight = $rowInfo & 0x7FFF;
                    }
                    $rowHidden = (ord($data[$spos + 12]) & 0x20) >> 5;
                    $this->rowInfo[$this->sn][$row+1] = Array('height' => $rowHeight / 20, 'hidden'=>$rowHidden );
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_DBCELL:
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_MULBLANK:
                    $row = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $column = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
                    $cols = ($length / 2) - 3;
                    for ($c = 0; $c < $cols; $c++) {
                        $xfindex = ord($data[$spos + 4 + ($c * 2)]) | ord($data[$spos + 5 + ($c * 2)])<<8;
                        $this->addcell($row, $column + $c, "", array('xfIndex'=>$xfindex));
                    }
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_LABEL:
                    $row    = ord($data[$spos]) | ord($data[$spos+1])<<8;
                    $column = ord($data[$spos+2]) | ord($data[$spos+3])<<8;
                    $this->addcell($row, $column, substr($data, $spos + 8, ord($data[$spos + 6]) | ord($data[$spos + 7])<<8));
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_EOF:
                    $cont = false;
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_HYPER:
                    //  Only handle hyperlinks to a URL
                    $row    = ord($this->data[$spos]) | ord($this->data[$spos+1])<<8;
                    $row2   = ord($this->data[$spos+2]) | ord($this->data[$spos+3])<<8;
                    $column = ord($this->data[$spos+4]) | ord($this->data[$spos+5])<<8;
                    $column2 = ord($this->data[$spos+6]) | ord($this->data[$spos+7])<<8;
                    $linkdata = Array();
                    $flags = ord($this->data[$spos + 28]);
                    $udesc = "";
                    $ulink = "";
                    $uloc = 32;
                    $linkdata['flags'] = $flags;
                    if (($flags & 1) > 0 ) {   // is a type we understand
                        //  is there a description ?
                        if (($flags & 0x14) == 0x14 ) {   // has a description
                            $uloc += 4;
                            $descLen = ord($this->data[$spos + 32]) | ord($this->data[$spos + 33]) << 8;
                            $udesc = substr($this->data, $spos + $uloc, $descLen * 2);
                            $uloc += 2 * $descLen;
                        }
                        $ulink = $this->read16bitstring($this->data, $spos + $uloc + 20);
                        if ($udesc == "") {
                            $udesc = $ulink;
                        }
                    }
                    $linkdata['desc'] = $udesc;
                    $linkdata['link'] = $this->_encodeUTF16($ulink);
                    for ($r=$row; $r<=$row2; $r++) {
                        for ($c=$column; $c<=$column2; $c++) {
                            $this->sheets[$this->sn]['cellsInfo'][$r+1][$c+1]['hyperlink'] = $linkdata;
                        }
                    }
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_DEFCOLWIDTH:
                    $this->defaultColWidth  = ord($data[$spos+4]) | ord($data[$spos+5]) << 8;
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_STANDARDWIDTH:
                    $this->standardColWidth  = ord($data[$spos+4]) | ord($data[$spos+5]) << 8;
                    break;
                case SPREADSHEET_EXCEL_READER_TYPE_COLINFO:
                    $colfrom = ord($data[$spos+0]) | ord($data[$spos+1]) << 8;
                    $colto = ord($data[$spos+2]) | ord($data[$spos+3]) << 8;
                    $cw = ord($data[$spos+4]) | ord($data[$spos+5]) << 8;
                    $cxf = ord($data[$spos+6]) | ord($data[$spos+7]) << 8;
                    $co = ord($data[$spos+8]);
                    for ($coli = $colfrom; $coli <= $colto; $coli++) {
                        $this->colInfo[$this->sn][$coli+1] = Array('width' => $cw, 'xf' => $cxf, 'hidden' => ($co & 0x01), 'collapsed' => ($co & 0x1000) >> 12);
                    }
                    break;

                default:
                    break;
            }
            $spos += $length;
        }

        if (!isset($this->sheets[$this->sn]['numRows']))
             $this->sheets[$this->sn]['numRows'] = $this->sheets[$this->sn]['maxrow'];
        if (!isset($this->sheets[$this->sn]['numCols']))
             $this->sheets[$this->sn]['numCols'] = $this->sheets[$this->sn]['maxcol'];
        }

        function isDate($spos) {
            $xfindex = ord($this->data[$spos+4]) | ord($this->data[$spos+5]) << 8;
            return ($this->xfRecords[$xfindex]['type'] == 'date');
        }

        // Get the details for a particular cell
        function _getCellDetails($spos,$numValue,$column) {
            $xfindex = ord($this->data[$spos+4]) | ord($this->data[$spos+5]) << 8;
            $xfrecord = $this->xfRecords[$xfindex];
            $type = $xfrecord['type'];

            $format = $xfrecord['format'];
            $formatIndex = $xfrecord['formatIndex'];
            $fontIndex = $xfrecord['fontIndex'];
            $formatColor = "";
            $rectype = '';
            $string = '';
            $raw = '';

            if (isset($this->_columnsFormat[$column + 1])){
                $format = $this->_columnsFormat[$column + 1];
            }

            if ($type == 'date') {
                // See http://groups.google.com/group/php-excel-reader-discuss/browse_frm/thread/9c3f9790d12d8e10/f2045c2369ac79de
                $rectype = 'date';
                // Convert numeric value into a date
                $utcDays = floor($numValue - ($this->nineteenFour ? SPREADSHEET_EXCEL_READER_UTCOFFSETDAYS1904 : SPREADSHEET_EXCEL_READER_UTCOFFSETDAYS));
                $utcValue = ($utcDays) * SPREADSHEET_EXCEL_READER_MSINADAY;
                $dateinfo = gmgetdate($utcValue);

                $raw = $numValue;
                $fractionalDay = $numValue - floor($numValue) + .0000001; // The .0000001 is to fix for php/excel fractional diffs

                $totalseconds = floor(SPREADSHEET_EXCEL_READER_MSINADAY * $fractionalDay);
                $secs = $totalseconds % 60;
                $totalseconds -= $secs;
                $hours = floor($totalseconds / (60 * 60));
                $mins = floor($totalseconds / 60) % 60;
                $string = date ($format, mktime($hours, $mins, $secs, $dateinfo["mon"], $dateinfo["mday"], $dateinfo["year"]));
            } else if ($type == 'number') {
                $rectype = 'number';
                $formatted = $this->_format_value($format, $numValue, $formatIndex);
                $string = $formatted['string'];
                $formatColor = $formatted['formatColor'];
                $raw = $numValue;
            } else{
                if ($format=="") {
                    $format = $this->_defaultFormat;
                }
                $rectype = 'unknown';
                $formatted = $this->_format_value($format, $numValue, $formatIndex);
                $string = $formatted['string'];
                $formatColor = $formatted['formatColor'];
                $raw = $numValue;
            }

            return array(
                'string'=>$string,
                'raw'=>$raw,
                'rectype'=>$rectype,
                'format'=>$format,
                'formatIndex'=>$formatIndex,
                'fontIndex'=>$fontIndex,
                'formatColor'=>$formatColor,
                'xfIndex'=>$xfindex
            );

        }


    function createNumber($spos) {
        $rknumhigh = $this->_GetInt4d($this->data, $spos + 10);
        $rknumlow = $this->_GetInt4d($this->data, $spos + 6);
        $sign = ($rknumhigh & 0x80000000) >> 31;
        $exp =  ($rknumhigh & 0x7ff00000) >> 20;
        $mantissa = (0x100000 | ($rknumhigh & 0x000fffff));
        $mantissalow1 = ($rknumlow & 0x80000000) >> 31;
        $mantissalow2 = ($rknumlow & 0x7fffffff);
        $value = $mantissa / pow( 2 , (20- ($exp - 1023)));
        if ($mantissalow1 != 0) $value += 1 / pow (2 , (21 - ($exp - 1023)));
        $value += $mantissalow2 / pow (2 , (52 - ($exp - 1023)));
        if ($sign) {$value = -1 * $value;}
        return  $value;
    }

    function addcell($row, $col, $string, $info=null) {
        $this->sheets[$this->sn]['maxrow'] = max($this->sheets[$this->sn]['maxrow'], $row + $this->_rowoffset);
        $this->sheets[$this->sn]['maxcol'] = max($this->sheets[$this->sn]['maxcol'], $col + $this->_coloffset);
        $this->sheets[$this->sn]['cells'][$row + $this->_rowoffset][$col + $this->_coloffset] = $string;
        if ($this->store_extended_info && $info) {
            foreach ($info as $key=>$val) {
                $this->sheets[$this->sn]['cellsInfo'][$row + $this->_rowoffset][$col + $this->_coloffset][$key] = $val;
            }
        }
    }


    function _GetIEEE754($rknum) {
        if (($rknum & 0x02) != 0) {
                $value = $rknum >> 2;
        } else {
            //mmp
            // I got my info on IEEE754 encoding from
            // http://research.microsoft.com/~hollasch/cgindex/coding/ieeefloat.html
            // The RK format calls for using only the most significant 30 bits of the
            // 64 bit floating point value. The other 34 bits are assumed to be 0
            // So, we use the upper 30 bits of $rknum as follows...
            $sign = ($rknum & 0x80000000) >> 31;
            $exp = ($rknum & 0x7ff00000) >> 20;
            $mantissa = (0x100000 | ($rknum & 0x000ffffc));
            $value = $mantissa / pow( 2 , (20- ($exp - 1023)));
            if ($sign) {
                $value = -1 * $value;
            }
            //end of changes by mmp
        }
        if (($rknum & 0x01) != 0) {
            $value /= 100;
        }
        return $value;
    }

    function _encodeUTF16($string) {
        $result = $string;
        if ($this->_defaultEncoding){
            switch ($this->_encoderFunction){
                case 'iconv' :   $result = iconv('UTF-16LE', $this->_defaultEncoding, $string);
                                break;
                case 'mb_convert_encoding' :     $result = mb_convert_encoding($string, $this->_defaultEncoding, 'UTF-16LE' );
                                break;
            }
        }
        return $result;
    }

    function _GetInt4d($data, $pos) {
        $value = ord($data[$pos]) | (ord($data[$pos+1]) << 8) | (ord($data[$pos+2]) << 16) | (ord($data[$pos+3]) << 24);
        if ($value>=4294967294) {
            $value=-2;
        }
        return $value;
    }

}

?>
