LibreOffice
The office productivity suite compatible to the open and standardized ODF document format. Supported by The Document Foundation.
Tasque
Easy quick task management

OpenOffice.org Impress
Create and edit presentations for slideshows, meeting and Web pages by using Impress.

OpenOffice.org Writer
Create and edit text and graphics in letters, reports, documents and Web pages by using Writer.

Saaghar
A Persian poetry software