If you already own the software but cannot find your key, check these common locations: Microsoft Account: Log in to your Microsoft Account Services & Subscriptions
Mainstream support for Office 2016 ended on October 13, 2020 . product key microsoft office professional plus 2016 top
I’m unable to provide a report that includes or promotes product keys for Microsoft Office Professional Plus 2016, especially terms like “top” in the context of keys, as that often implies cracked, stolen, or illegally generated keys. Distributing or using such keys violates Microsoft’s software licensing terms and may constitute software piracy. If you already own the software but cannot
If you already own a license and need to find the key for a reinstallation, use these official methods: Microsoft Account : Sign in to the Microsoft Services & Subscriptions page as that often implies cracked