The allows you to deploy spelling, grammar, and hyphenation dictionaries for multiple languages without an active internet connection. Microsoft changed how these language packs are distributed, moving away from standalone MSI installers to the Click-to-Run deployment architecture.

setup.exe /configure config_proofing.xml

: Verifies vocabulary against localized dictionaries.

Extract the files to a dedicated folder, such as C:\Office2021Offline .

Open Command Prompt as Administrator and run:

To install the Office 2021 proofing tools offline, you'll need to download the installation package from Microsoft's website. Here are the steps:

: Add as many language tags as required. In the example above, es-es adds Spanish proofing tools, and fr-fr adds French proofing tools. The MatchOS tag ensures it also grabs the language matching the user's operating system. Step 3: Download the Offline Files

Online language add-ons often nag users for Microsoft Account sign-ins. Offline installers, when deployed via command line, bypass this consumer friction entirely.