If you are on a newer Mac (macOS Catalina to Sequoia), consider these options: Moving MS Office 2008 from 12-yr old iMac…
Additionally, Microsoft Office 2008 may not be compatible with newer Mac OS versions or other software. Be sure to check for any available updates or patches to ensure compatibility and security.
Installing Office for Mac 2008 on MacBook Air with no DVD Drive
You will need a valid 25-character product key. Office 2008 does not use the modern "Sign-in to activate" method.
