For information regarding tips on how to assign licenses, see Assign licenses to users in Microsoft 365 for enterprise. Suggestion: If you see an error that says the Microsoft Office installer.pkg can't be opened as it is from an unknown developer, wait ten seconds and move the downloaded file for https://aarondefant.de/microsoft-office-2021-mac-standard-sofort-download-fur-eine-schnelle-und-einfache-installation/