This is the most critical section. Unlike modern Microsoft 365, where language packs are downloaded via the "Options" menu, Office 2016 Pro Plus language packs are often distributed via or MSDN Subscriptions .
: Close all Office applications (Word, Excel, etc.) before running the downloaded file to integrate the new language. Configure Preferences Open any Office app and go to File > Options > Language Office display language , select your new language and click Set as Preferred microsoft office 2016 pro plus language pack
The installation typically takes 3–10 minutes, depending on your hard drive speed. Unlike the core Office suite, this is a patch installation; it will not ask for a product key if your base Office 2016 Pro Plus is already activated. This is the most critical section
Navigate to the mounted drive or extracted folder and double-click Setup.exe . You may see a User Account Control (UAC) prompt; click "Yes." Configure Preferences Open any Office app and go
Note: Not all languages are available for the "Pro Plus" variant of 2016. The Volume Licensing version has the broadest support, while Retail versions may be limited to 20-30 core languages.
It is worth comparing the legacy 2016 pack to the modern 365 experience.