Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Here is the link: https://officecdn.microsoft.com/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/Microsoft_365_and_Office_16.88.24081116_Installer.pkg?apid=ets
Before you install this, did you make sure you uninstall all Office products that are currently installed first? That needs to be done before you install.