<s>
Lucid	B-Application
3-D	I-Application
was	O
a	O
spreadsheet	B-Application
package	O
that	O
began	O
in	O
the	O
MS-DOS	B-Application
era	O
;	O
Windows	B-Application
support	O
came	O
later	O
.	O
</s>
<s>
Their	O
Lucid	B-Application
3-D	I-Application
spreadsheet	B-Application
was	O
marketed	O
by	O
DAC	O
.	O
</s>
<s>
Lucid	B-Application
3-D	I-Application
was	O
considered	O
noteworthy	O
at	O
the	O
time	O
for	O
being	O
"	O
the	O
only	O
major	O
memory-resident	O
spreadsheet	B-Application
available	O
for	O
the	O
PC.	O
"	O
</s>
<s>
Any	O
cell	O
of	O
the	O
spreadsheet	B-Application
can	O
contain	O
a	O
complete	O
other	O
spreadsheet	B-Application
that	O
you	O
can	O
access	O
with	O
a	O
single	O
keystroke.	O
"	O
</s>
<s>
The	O
Windows	B-Application
versions	O
could	O
display	O
"	O
up	O
to	O
nine	O
overlapping	O
spreadsheet	B-Application
windows.	O
"	O
</s>
