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Fix External Users Unable to Edit SharePoint Files in Excel Mobile
Question details
External users are unable to edit shared SharePoint files using the Excel mobile app, even though they can edit them normally in a web browser.
- Product
- Excel Mobile / SharePoint
- Device & OS
- not provided
- Scenario
- An external user attempts to open and edit a shared SharePoint Excel file on a mobile device.
- Observed behavior
- The Excel mobile app opens the file in read-only mode, or the device unexpectedly redirects the user to the app store instead of opening the shared link in the app.
Ensure the external user has the correct sharing link and knows the exact Microsoft account email address that received the original SharePoint sharing invitation.
Verify Microsoft 365 License and Account Sign-In
Mobile Office apps require an eligible Microsoft 365 application license for editing features, especially on devices with larger screens.
External users often assume that being granted edit access to a file gives them editing rights across all platforms. However, the Excel mobile app enforces its own licensing checks.
Confirm that the external user has an active Microsoft 365 license assigned to their account that explicitly includes mobile editing.
Launch the Excel mobile app and tap on the profile or account picture in the top corner.
Ensure the user is signed in using the exact Microsoft account that received the SharePoint sharing invitation. If not, add the correct account.
Clear Browser Cache and Reset the Excel App
This resolves redirection issues where opening a shared link incorrectly sends the user to the app store instead of launching the Excel app.
Request Assistance from the Microsoft 365 Administrator
If local troubleshooting fails, the organization's administrator may need to adjust tenant sharing policies or review licensing assignments.
Edit Spreadsheets on Mobile for Free with WPS Office
Avoid complicated licensing restrictions for mobile editing. WPS Office provides a free, lightweight, and highly compatible alternative to Microsoft Excel for editing spreadsheets seamlessly on your mobile device.
- 1. Download the app: Install WPS Office for free from the Google Play Store or Apple App Store on your mobile device.
- 2. Download the shared file: Access the SharePoint file via your mobile web browser and download a local copy to your device.
- 3. Open and edit: Open the downloaded file in WPS Office, use the rich editing tools to make your changes, and then share it back with your team.
Frequently Asked Questions
Why does the SharePoint link redirect me to the app store instead of opening Excel?
This typically occurs due to browser cache conflicts or if the mobile operating system has lost the deep link association for the Excel app. Clearing your mobile browser cache and resetting the Excel app usually resolves the redirection.
Can external users edit SharePoint Excel files for free on mobile?
Generally, using the Microsoft Excel mobile app to edit files requires an eligible Microsoft 365 license. If users do not possess one, they will only be able to view the file in the app or must edit it using the web browser instead.
Does screen size affect my ability to edit Excel files on a tablet?
Yes, Microsoft restricts free editing on mobile devices to screens that are 10.1 inches or smaller. If you are using a larger tablet, a qualifying Microsoft 365 subscription is strictly required to enable editing features.
