OpenOffice

A open source office product that includes:
Writer -The MS Word equivalent
Calc – The MS Excel equivalent
Impress – The MS Powerpoint equivalent
Draw – No direct Office equivalent
Base – simular to MS Access

To find out more about this software check out www.openoffice.org
or to download the software http://download.openoffice.org/index.html

Please make sure to save your documents created in this as  Word , Excel  etc or the person that you share the file with may not be able to open the document, becasue by default oppenoffice saves as a open Document Format (ODF).