Completely free, OpenOffice is designed to challenge Microsoft's dominance in the word processing market.
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Featuring a full-featured word processor, spreadsheet application, database, and much more, OpenOffice is extremely powerful and getting more so every day.
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OpenOffice - OpenOffice is an open-source suite of writing applications for Windows, Mac, and Linux.
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OpenOffice serves charting needs and presentation, plus the usual word processing.