However, some users have reported getting the annoying Microsoft Teams file unknown error while trying to share their files. You can find several users complaining of similar issues in the Microsoft Teams forum. If you are also troubled by this error, here is how to fix Microsoft teams file unknown error in Windows computer.

How to fix Microsoft teams file unknown error

1. Sign Out and Restart Teams

2. Add Files from Conversation 

3. Open Files with Online Option 

4. Contact Support and Online Community 

5. Reinstall Microsoft Teams

There does not seem to be any conclusive solution to Microsoft teams file unknown error. However, you can follow the troubleshooting tips in this article to resolve the issue.

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