Any repository claiming to provide one is either distributing a key that Microsoft has already blocked, offering a Terms-of-Service-violating activation script, or (most likely) trying to infect your computer with malware.
Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended security updates. Microsoft Support Any repository claiming to provide one is either
The modern equivalent is Microsoft 365 (formerly Office 365), which costs: offering a Terms-of-Service-violating activation script