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IT Alert - Some SharePoint Online Excel Files May Not Open in Excel for the Web

11 June, 2026

KAUST Community,
Microsoft is currently investigating an issue affecting SharePoint Online and Excel for the web.
What is happening Some Excel files stored in SharePoint Online may not open in Excel for the web when accessed from SharePoint sites with unique permissions.
Who is affected Faculty, staff, and students who access Excel files through SharePoint Online.
What you should do If an Excel file does not open in your browser, select Open in App from SharePoint Online or download the file and open it using the Excel desktop application instead.
What we are doing KAUST IT is aware of this issue and is monitoring Microsoft's progress toward resolution.
Thank you for your patience and understanding.

KAUST IT
it.kaust.edu.sa