If Office was already installed and activated but now shows "Mondo," you can try to retrieve your original key using the Command Prompt: Open as an administrator.
A product key is a 25-character code that is used to activate Microsoft Office Mondo 2016. It's a unique code that is required to install and use the software. The product key is used to verify that you have a genuine copy of the software and to prevent unauthorized use. microsoft office mondo 2016 product key
Search your inbox for "Microsoft Office product key" from your original date of purchase. If Office was already installed and activated but
Sign in to your Microsoft Account Services page to see your active subscriptions or purchased products. microsoft office mondo 2016 product key