A Microsoft file hosting and synchronization service.
This is expected behavior when Office files are opened from Finder on macOS.
AutoSave works for Microsoft 365 files stored in OneDrive, but if a file is opened from Finder or from a recent/local path, AutoSave may not turn on correctly, or the app may treat the file as a local file. On macOS 12.1 and later, OneDrive also moved its folder location to Library > Cloud Storage > OneDrive, which can break older recent-file entries and AutoSave behavior.
Try this:
- Close the file.
- Open the Microsoft 365 app first, such as Word or Excel.
- In the app, open the file from File > Open and select the OneDrive location, instead of opening it from Finder.
- If the file was saved to an older OneDrive path, use File > Save As and save it again to the current OneDrive folder at Library > Cloud Storage > OneDrive.
- If AutoSave is still off, check the app setting:
- File > Options > Save
- Make sure AutoSave is checked.
- In OneDrive, confirm Files On-Demand is enabled correctly:
- Select the OneDrive cloud icon in the menu bar
- Open Preferences
- Under Files On-Demand, choose Download files as you use them or Download all files now
- If offline access is needed for specific files or folders, right-click them in Finder and select Always keep on this device.
Important details:
- AutoSave only applies to files stored in OneDrive or SharePoint.
- Opening from Finder can require closing and reopening from within the Office app to restore AutoSave.
- On macOS 12.1 or later, Files On-Demand cannot be turned off completely.
- If pinned or recent files stopped working last week, that matches the OneDrive folder path change on macOS.