How to change access to files in teams

Question

Hi,

I was wondering if there was a way to change access to a single file on a teams channel? I have a single file that I would like even owners of the channel to only have viewing access. I have tried going through advanced settings and removing all permissions and then adding back the individuals with read only permissions and the people are still able to edit the excel sheet after going in. Is there something else I can do or is it not something I can do because they are owners of the channel as well?

Thank you!

Answer 1

Teams is a shared workspace, every member gets equal access to files. While you can toy with the permissions on the underlying SPO backend, any Owner will still be able to overwrite them. Similarly, even if you protect the file with a sensitivity label, Owners can override the label.

Your best option is to store the file in a different place, such as your OneDrive for Business, and share it with the team/group with view-only permissions.