Important: Before using the tool, make sure you have the correct account info and password associated with your purchase of Office available for when you reactivate. This tool can also help if you've subscribed to Office 365 but previously had a one-time purchase of Office for Mac on your computer, and aren't seeing certain. This can be due to your copy of Office still using the license of your one-time purchase and not your subscription. Before you begin 1.
Check what license your version of Office is currently using.