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

Apache should deprecate OpenOffice and send users to LibreOffice instead Some open source supporters are still using Apache Open Office instead of LibreOffice.

In its first major revision in more than a year, the Apache OpenOffice suite now comes with a sidebar, from which users can launch their favorite tools.