This installs a valid volume license key (GVLK or MAK).
Using third-party "activator" scripts from the internet is and poses significant security risks , including malware and system instability. The only official way to activate Office is through a valid subscription or product key from Microsoft . Official Guide: Activating Office via CMD Microsoft Office 365 Pro Plus Activator Cmd
While there are many scripts online claiming to activate Microsoft Office 365 Pro Plus This installs a valid volume license key (GVLK or MAK)
Security and reliability risks