I think Gnumeric (Windows) is a beautiful piece of work, loads way faster that OpenOffice. Wish it had a format painter though (paste a format to multiple non-adjacent cells) and would like to be able to delete a group of non-adjacent rows. Takes a bit more getting used than OpenOffice when migrating from Excel, and there is not sufficient help available. But if you want a good spreadsheet that loads fast....
given by Anonymous on December 26, 2010
given by Anonymous on April 3, 2011
Its excellent software. Best among open source spreadsheet installable softwares. Few features can make it better than any