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.