If you have downloaded the specific Arabic Language Pack executable file:
by Microsoft, and official download links for standalone language packs have largely been retired. Microsoft Support microsoft office 2010 language pack arabic
: If you have the language pack but encounter bugs, you may need the Service Pack 2 for Office 2010 Language Pack Microsoft Download Center Reverting Changes If you have downloaded the specific Arabic Language
Run the language pack executable (typically X16-37685.exe for 32-bit or X16-37621.exe for 64-bit versions). microsoft office 2010 language pack arabic