: You will still need an internet connection at least once to your license after the offline installation is complete. Older Versions
You might not need an offline installer for a simple home install on fiber optic internet. But for the following scenarios, it is a game-changer. offline installer office
: Crucial for air-gapped systems, secure environments, remote workspaces, or locations with highly unstable networks. : You will still need an internet connection
Once you have the offline installer file (usually Setup.exe and a companion folder): why you need one
This guide covers what an offline installer is, why you need one, and how to legally obtain and use it for Microsoft Office 2016, 2019, 2021, and Microsoft 365.