Hi Melissa Lim SG
Good day to you.
From your description, we'd like to verify whether you can access to the file/wiki tab when you using
Teams web app. It is useful to know if the issue only associated to Teams client. For Teams client, you can try to clear the cache of Teams to check the result. If you using currently
Windows OS, kindly refer to the steps below(Note: please back up your important data before clearing):
1. Fully exit the Microsoft Teams desktop client. To do this, either right click Teams from the Icon Tray and select ‘Quit’, or run Task Manager and fully kill the process.
2. Go to File Explorer, and type in %appdata%\Microsoft\teams.
3. Once in the directory, remove all the files and restart Teams.
For Mac, please refer to the steps:
1. Quit Microsoft Teams.
2. Delete files in following folders.
“~/Library/Application Support/Microsoft/Teams/Application Cache/Cache”
“~/Library/Application Support/Microsoft/Teams/blob_storage”
“~/Library/Application Support/Microsoft/Teams/Cache”
“~/Library/Application Support/Microsoft/Teams/databases”
“~/Library/Application Support/Microsoft/Teams/GPUCache”
“~/Library/Application Support/Microsoft/Teams/IndexedDB”
“~/Library/Application Support/Microsoft/Teams/Local Storage”
“~/Library/Application Support/Microsoft/Teams/tmp”
3. Restart Microsoft Teams.
If the issue persists, to provide further assistance, we'd like to know if the issue only appears specific team or all teams.
If you have anything unclear, please feel free to let us know.
Regards,
Joey