Installing the Microsoft Office Language Pack 2016 Arabic 32bit is a straightforward process:
Under "Choose Display and Help languages," select Arabic to set it as the default, as explained in support documentation. microsoft office language pack 2016 arabic 32bit
Common issues & troubleshooting
Visit the Microsoft Support page for Office 2016 language accessory packs. Select Language: Choose Arabic from the drop-down menu. Installing the Microsoft Office Language Pack 2016 Arabic