Hi MHB797,
I'm Amro, an Independent advisor and a fellow Microsoft customer. I’m happy to look into this for you.
Please check the following steps:
> Update MS Teams:
https://support.microsoft.com/office/update-mic...
>> Please try to export an Excel report with Teams Web App: https://teams.microsoft.com
>>> Clear Teams Caches:
- Quit Microsoft Teams. Right-click the icon and select Quit.
- Cut and paste %appdata%\Microsoft\Teams into File Explorer.
- Delete the contents of the entire folder.
- Restart Microsoft Teams.
https://learn.microsoft.com/microsoftteams/trou...
I also recommend to try with a different network and device to confirm if issue is related with specific network and device client.
please check this thread for more Info:
https://answers.microsoft.com/en-us/msteams/for...
I hope this helps, please feel free to reply to this if you need any further Assistance.
this is a user-to-user support forum. We're users just like you helping other users to find solutions to their problems.
Kindly
Amro