For a complete suite that includes all tools, some official direct links provide disk images (.img) that can be mounted and installed entirely without an active connection. : Official Microsoft CDN Link.
: Use a text editor to create a file named proofing.xml in that same folder with the following content (replace de-de and es-es with your needed Language IDs ): office 2021 proofing tools offline installer best
From an administrator command prompt: setup.exe /download proofing-config.xml (This downloads ~800 MB of data. Once done, the source is entirely offline.) For a complete suite that includes all tools,
For a complete suite that includes all tools, some official direct links provide disk images (.img) that can be mounted and installed entirely without an active connection. : Official Microsoft CDN Link.
: Use a text editor to create a file named proofing.xml in that same folder with the following content (replace de-de and es-es with your needed Language IDs ):
From an administrator command prompt: setup.exe /download proofing-config.xml (This downloads ~800 MB of data. Once done, the source is entirely offline.)