def initialize(ref, sheet, options={})
      @ref = ref
      @sheet = sheet
      @style = nil
      @sheet.workbook.tables << self
      @table_style_info = TableStyleInfo.new(options[:style_info]) if options[:style_info]
      @name = "Table#{index+1}"
      parse_options options
      yield self if block_given?
    end
Creates a new Table object
@param [String] ref The reference to the table data like 'A1:G24'.
@param [Worksheet] sheet The sheet containing the table data.
@option options [Cell, String] name
@option options [TableStyle] style