OxygenOffice Professional is a free and open source enhancement of official OpenOffice.org. The OxygenOffice Professional team has modified the source of OpenOffice.org and bundled lot of extras with it.

More than 3400 graphics are included, both clip art and photos. Several templates and sample documents are included, as well as over 90 fonts.

Additional tools like OOoWikipedia, which can search the free on-line encyclopedia Wikipedia, are also included. An enhanced help menu, additional user’s manual.

Version 2.3.1 includes enhanced capabilities of running Excel’s Visual Basic, more elements to templates and galleries, Office Open XML import, and bug fixes.

Get it here: OxygenOffice