OpenOffice.org can be used as both an Open Source product or project. It is a multi-platform office productivity software. It includes the most important desktop applications such as a word processor and spreadsheet, presentation manager, and drawing software. The user interface is similar to other office suites and has similar features. OpenOffice.org is sophisticated and flexible. It also supports a variety file formats, including Microsoft Office.Writer - A free Word Processor for Mac
OpenOffice is an open-source productivity suite. OpenOffice provides many essential desktop tools, including a word processor and spreadsheet, a presentation manager, and a drawing software. The app is free and can be used to access similar features to Microsoft Office without having to pay.
Full release notes are available here