Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
The yellow bar is typically an activation or subscription-state conflict, not a file-format problem. Office 2016 files should still open and save in Office Home 2024.
For Mac, the supported fix is to remove the existing Office installation and license files, then reinstall Office Home 2024 from the Microsoft account that owns that purchase:
- Uninstall Office for Mac completely.
- Remove Office license files on the Mac.
- Restart the Mac.
- Go to the Microsoft account services page and sign in with the same Microsoft account used to purchase Office Home 2024.
- Find the Office 2024 license and use Install.
- Install the downloaded
.pkgversion. - Open Word or Excel and sign in with that same Microsoft account.
Important points:
- Do not use the Mac App Store version.
- This issue is commonly caused by leftover Microsoft 365 or older Office licensing information conflicting with Office 2024.
- Existing Office 2016 documents do not need to be converted just to edit and save them.
If files are stored in OneDrive and still will not save after activation is corrected, download them to the Mac first. A reported workaround is also to disable OneDrive Files On-Demand so a local copy is kept on the device.