Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
1
If you have downloaded and installed the Office apps from your Microsoft account on this link (https://account.microsoft.com/services/) what error is indicated when you try to use the Office apps on your Mac, is that an 0x0 error?
2
At the top left of your Mac desktop, click the Apple icon and select 'About this Mac', what version of MacOS is installed on your computer?