Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello
I advise you to follow the steps indicated in the following Microsoft article that will guide you to the end and more.
Activate Office 365, Office 2016, or Office 2013
https://support.office.com/en-us/article/activa...
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I hope it will be of great help and there are different clarifications about the process.