What spreadsheet programs are available?
Solution 1:
Gnumeric 
Gnumeric is part of 'GNOME Office' suite, which means it stylistically fits into Ubuntu, but can just as easily be used on its own.
Solution 2:
Try http://projects.gnome.org/gnumeric/
Solution 3:
For text-only use in a terminal, there's sc (man page).
If the first link is not working, you can try the Ubuntu Packages site.
Solution 4:
Check these out... here is list of all spreadsheet software for linux... :)
http://www.linuxlinks.com/Software/Spreadsheets/
else u can try koffice, staroffice and gnome-office.
I hope this helped.. :)