Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello Kathy. I'm Rey
Please check the below links regarding this issue:
Sign in to Office or Office 365:
https://support.office.com/en-us/article/Sign-i...
Forgot your user name or Password:
https://support.office.com/en-us/article/I-forg...
Download and install Office:
https://support.office.com/en-us/article/Downlo...
Regards