Modern retail licenses (Office 365, Office 2021, Office 2019) are "digital licenses." They bind the software to your email account rather than the specific hardware.
This method is common for older versions of Office (2016 and earlier) or specific volume license keys. excel key activation
The location of your product key depends on how you purchased the software: Modern retail licenses (Office 365, Office 2021, Office
Activation does not always go smoothly. Here are the most common errors and how to resolve them. Modern retail licenses (Office 365