The simplest and most reliable method is purchasing a legitimate product key from Microsoft or an authorized retailer. This provides permanent activation with full support and updates.
: These tools emulate a local Key Management Service (KMS) server on a device. ratiborus kms tools for office 2016 mac
If you're looking for alternative ways to activate Office 2016 on your Mac device, you may consider: The simplest and most reliable method is purchasing
These are open-source, completely free desktop suites that mimic the traditional layout of older Microsoft Office versions. you may consider: These are open-source
One of the most common issues is that newer versions of Office 2016 for Mac (version 16.xx) may have activation problems. The solution is to install an earlier version (version 15.xx) where activation still works properly.