: Close and restart all open Office programs for the changes to take effect. Key Details for Office 2016
The pack is installed, but Office is still in English by default. You must switch it:
Install the Language Accessory Packs for Office 2016 - Microsoft Support microsoft office language pack 2016 -arabic- -64-bit-
Provides help documentation and search results in Arabic, making it easier to find support within the apps .
Assuming you have the legitimate 32-bit .EXE or .MSI file: : Close and restart all open Office programs
You can find specific updates like KB2910955 on the Microsoft Download Center , which provides the 64-bit Language Interface Pack files.
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Before downloading anything, open any Office app (Word, Excel). Go to . Look under "About Excel." If it says 32-bit , you cannot install the 64-bit pack. If you try, the installer will fail with a "Click-to-Run vs MSI" or "Architecture mismatch" error.