Excel not saving

If Excel will not let data be saved after renewing Microsoft 365 Personal, the most relevant checks are licensing refresh and common Excel save blockers.

1. Verify the apps are activated with the same Microsoft account used for the subscription.
   • Open an Office app.
   • Sign out, then sign back in with the Microsoft account tied to the subscription.
   • If using Mac, open the app name on the menu bar, select About the app, select More Info…, then select Refresh License.
   • Close all Microsoft 365 apps and reopen them.
2. Make sure Office is online and activated.
   • Microsoft 365 desktop apps need internet access for initial activation.
   • If the apps are not connected to the internet regularly, they can enter reduced functionality mode and show unlicensed behavior.
   • Reconnect to the internet and sign in to reactivate.
3. Try immediate Excel save workarounds.
   • In Excel, select File > Save As and save with a new file name.
   • Try saving the workbook to another location, such as the local hard disk.
   • Create a new workbook and try saving it to the original folder. If that fails, the folder or drive may be the issue.
   • Save the file as a different Excel file type, such as .xlsx or .xlsm instead of .xls.
4. Check for file or folder permission problems.
   • Excel needs Read, Write, Modify, and Delete permissions for the target folder.
   • If the file or location is read-only, or if a network/external drive connection failed, Excel may not save changes.
5. Check for storage or file lock issues.
   • Confirm the destination drive has enough free space.
   • If the workbook is shared and another instance of Excel or another user is saving it at the same time, the file may be locked.
6. Test whether add-ins or security software are blocking saves.
   • Start Excel in Safe Mode and try saving again. If saving works there, a third-party add-in or startup file is likely causing the problem.
   • Temporarily deactivate antivirus software and test saving again, because antivirus scanning can interrupt Excel save operations.
7. If the issue started after reinstalling or changing editions, check whether the installed product matches the subscription.
   • If a one-time purchase of Office 2016 was installed instead of Microsoft 365, newer Microsoft 365 features are not available. Microsoft 365 includes subscription-based features, while Office 2016 only receives security and performance updates.

If the problem is specifically that Save or Save As is greyed out after renewal, the highest-value first steps are:

• sign out and back in with the correct Microsoft account,
• refresh the license,
• restart all Office apps,
• then try Save As to a new local file name.

• What's the difference between a paid Microsoft 365 subscription and the free web apps?
• Troubleshoot why Excel doesn't save changes
• New features in Office 2016 apps are missing after re-installing Office
• Can not "save" or "save as" documents or files. I am prompted to renew my subscription which I did but still does not work - Microsoft Q&A
• I can't save my excel doc. The Save as is greyed out. - Microsoft Q&A