You must reach the site office.com/setup if you wish to utilize your product key to activate your Microsoft Office product. Microsoft Office utility toolkit is a must-have for a user if he or she wants to perform basic productive tasks with a computing system. Primarily, the three primitive applications of Microsoft Office aid users in basic tasks such as filing a report (Microsoft Word), creating a PowerPoint presentation, or generating an Excel sheet. Other high-tech tools of Microsoft Office include Microsoft Teams, Microsoft Outlook, Microsoft OneNote, Visio, Project, etc. You can refer to the following steps for download, installation, and activation procedures, or if you have got a product key, arrive at the site office.com/setup , sign in, and use it to activate the services of Microsoft Office.