OS X Lion was beautiful. The linen texture in Notification Center, the skeuomorphic Calendar app, the way iCal had torn-paper edges… but time moves on.
: This is the recommended version for Lion. It includes Word, Excel, PowerPoint, and Outlook (Home & Business edition) Microsoft Office 2008 : This version is also supported on Lion Apple Support Community
If you cannot find or install older Office versions, consider free, open-source alternatives like LibreOffice or OpenOffice, which often support older operating systems.
Not all Office versions work with Lion 10.7.5. Here is the definitive compatibility list.