Microsoft has never, and will never, release an "activator." Official activation occurs via:
End of support for Office 2016 and Office 2019 - Microsoft Support MICROSOFT Office PRO Plus 2016 V16.0.4266.1003 RTM Activator
stands for "Release to Manufacturing," referring to the final stable version of the software provided to hardware manufacturers before its public debut. The "Activator" included in these bundles is usually a third-party script or executable—such as Microsoft Toolkit —designed to bypass Microsoft’s licensing checks. Core Risks of Using Unofficial Activators Microsoft has never, and will never, release an "activator