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Fix OneDrive for Mac Gray Cloud & Cannot Open Files Error
Question details
Users are unable to open Word or Excel files in OneDrive for Mac, which display a gray cloud icon with an exclamation mark or sync arrows. Files also fail to save or autosave.
- Product
- OneDrive for Mac
- Device & OS
- macOS
- Scenario
- Attempting to open, save, or sync Word and Excel files stored in OneDrive on a Mac computer.
- Observed behavior
- Files display a gray cloud icon with an exclamation mark, return a file-not-found error when clicked, and the autosave feature stops functioning.
Ensure you have a stable internet connection and back up any unsaved document changes locally on your Mac to prevent data loss during troubleshooting.
Rename Files or Folders with Unsupported Characters
Unsupported special characters in file or folder names often block OneDrive synchronization on Mac, triggering the gray cloud error.
Certain characters (such as <, >, :, ", |, ?, *, /, \) are not supported by OneDrive sync algorithms. If a file or its parent folder contains these characters, the sync process will stall.
Open Finder and navigate to your OneDrive folder. Look for any files or folders displaying the gray cloud icon with an exclamation mark.
Right-click the problematic file or folder, select 'Rename', and carefully remove any special characters from the name.
Press Enter to save the new name. Wait a few moments to allow OneDrive to recognize the change and resume syncing.
Unlink and Relink Your Mac to OneDrive
Resetting the connection between your Mac and your OneDrive account can resolve persistent sync issues and clear file-not-found errors.
Verify File Availability on OneDrive Web
Check the web version of OneDrive to confirm that your files actually exist and are intact on the server before troubleshooting the desktop app further.
Experience Seamless Cloud Syncing with WPS Office for Mac
If OneDrive sync issues are constantly disrupting your workflow on macOS, consider switching to WPS Office. It is a powerful, lightweight, and completely free alternative to Microsoft Office that comes with built-in, reliable cloud syncing. Enjoy a familiar interface and get back to work without frustrating gray cloud errors.
- 1. Download the App: Visit the WPS website and download the free macOS installation package.
- 2. Install on Mac: Open the downloaded file and drag the WPS Office icon into your Applications folder.
- 3. Open Your Files: Launch WPS Office, sign in to enable seamless cloud backup, and open your existing Office files instantly.
Frequently Asked Questions
What does a gray cloud with an exclamation mark mean in OneDrive for Mac?
This icon indicates a synchronization error. It usually means a file or folder cannot be synced between your Mac and the cloud due to unsupported characters in the file name, permission issues, or a stalled connection.
Why am I getting a 'file-not-found' error when opening Word files from OneDrive?
The 'file-not-found' error occurs because the OneDrive desktop app failed to download the latest version of the file from the cloud to your Mac, preventing the local application from accessing the document.
How do I fix autosave not working for Excel files on my Mac?
Autosave in Microsoft Office relies on an active, error-free connection to OneDrive. Resolve any sync issues by renaming files with special characters or unlinking and relinking your OneDrive account to restore autosave functionality.
