Microsoft 365 or Office on your computer. If you are using any other Microsoft service such as OneDrive, Outlook, Skype, or Xbox Live, it means you already have an account that you can use for any Microsoft activity. Microsoft365.com/setup
Microsoft365.com/setup , www.microsoft365/setup
Go to Microsoft365.com/setup, Microsoft 365 Setup website.
Sign In to your Office Account or Create a New One.
Now Enter Product Key.
Click Install Office Button.
Go ahead and Click Install Office Again.
Save and Run office setup.
Wait for Office to finish Installation.