An Intel processor.At least 1GB of RAM.2.5GB of available hard disk space.HFS+ hard disk formatting. Installation and Activation Challenges
: Allowed multiple users to work on the same document simultaneously through web apps. Compatibility and the Rosetta Turning Point Microsoft Office For Mac Os X Lion 10.7.5
Microsoft Office for Mac OS X Lion 10.7.5: A Historical Legacy An Intel processor
This is the most important part.
Mac OS X Lion 10.7.5 , the most compatible and recommended version of Microsoft Office is Office for Mac 2011 Microsoft Office For Mac Os X Lion 10.7.5