What is Apache OpenOffice? Apache OpenOffice (AOO) is free and open source software for office productivity owned by the Apache Software Foundation (ASF).

There are many alternatives available, but Apache OpenOffice is the first legitimate free contender to Microsoft Office. Read our review.

Can OpenOffice Run Excel?. In the free open-source office suite Apache OpenOffice, Calc is the spreadsheet equivalent to Microsoft Excel.

Apache OpenOffice is a full suite of office applications: word processor, database, spreadsheet, presentation, and graphics. Each of them is full-featured and robust.