: It will not work on a 64-bit installation of Office, even if your Windows operating system is 64-bit.
Install the Language Accessory Packs for Office 2016 - Microsoft Support microsoft office 2016 language interface pack 32 bit
Microsoft Office 2016 remains a staple for many organizations and individuals who prefer a one-time purchase over subscription models. To make this suite accessible globally, Microsoft provides tools like the , which allows users to translate the software's core menus and help systems into their native tongue. What is the Microsoft Office 2016 Language Interface Pack? : It will not work on a 64-bit
: These packs are compatible with Windows 10, Windows 8.1, Windows 8, and Windows 7. What is the Microsoft Office 2016 Language Interface Pack
If you need to add a language after you have already installed Office, follow these steps provided by Microsoft Support : support.microsoft.com