A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Dear @Andrew Schatz,
Thank you for reaching out to the Microsoft Q&A forum. I’m happy to assist you.
To better understand the situation and determine why the sharing link is not working, could you please provide a bit more information?
What type of account are you using (school, work, or personal Microsoft account)?
Are you using Excel for the web, Excel desktop app, or Excel mobile?
Where is the file currently stored (OneDrive, SharePoint, Teams, or local device)?
Does the error code appear when you generate/share the link, or when your classmates click the link to open the file?
Meanwhile, you may try the following basic checks:
Switch to a different internet connection or network.
If you are using Excel for the web, please try clearing your browser cache.
If you are using the Excel desktop app, please try repairing Microsoft Office using this guide: Repair an Office application
Providing these details will enable me to offer the most accurate next steps and, if necessary, route your request to the appropriate team for further assistance. Looking forward to your response so we can assist you further!