iWork

iWork is Apple's answer to Microsoft Office. It comprises of the Pages text editor (equivalent to Microsoft Word), Numbers (equivalent to Microsoft Excel) and Keynote (equivalent to Microsoft Powerpoint).

It´s more elegant in feel and look to Microsoft Office and there are lots of templates to choose from. The only problem I´ve checked so far is the incompatibility problems when opening documents from different versions of MS Office.

Keynote, Pages and Numbers

Download link:
http://iwork.en.softonic.com/mac