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OpenOffice Calc

OpenOffice Calc (OOo), commonly known as OpenOffice, is a discontinued open-source office suite. It was an open-sourced version of the earlier StarOffice, which Sun Microsystems acquired in 1999 for internal use. OpenOffice included a word processor (Writer), a spreadsheet (Calc), a presentation application (Impress), a drawing application ...more on Wikipedia

The Best Spreadsheet Software, Programs, and ApplicationsList Of All Sun Microsystems Software