I purchased the desktop product "Office Home 2024" for Mac in January, 2025. It had been working fine until a few days ago when it would no longer left me save or "save as". It tells me I need to activate Microsoft 365.
For the last 3 to 4 weeks, I had been signing on to Hotmail for an elderly parent, using my parent's login on my computer and occasionally opening Excel files that were sent to his email. His computer uses 365, Could that have something to do with this problem? This problem, however, didn't emerge until a some time after I began to access his account.
I checked "About Microsoft Excel" on my desktop copy and it shows "Version 16.106.1 (26021521); License: Office Home 2024". I have the same type of problem with Word, which also indicates that it is licensed. Please guide me in fixing this. I will need fairly simple instructions as my skills are limited. Thank you.