I have instructors that work all around the state, and I recently created a TEAM for everyone to access and edit Excel sheets. This is a new process for everyone, and no one has experience in Teams, including myself until now. This application was supposed
to be so easy, but this has been an absolute nightmare, to say the least. The newest error that many people are receiving, I believe when they try to follow the invite link, is an "Open in Desktop App? We're sorry. We can't open the workbook in the browser
because it uses these unsupported features: Workbook encryption. Do you want to open the file in the desktop app instead?" This error is received before even accessing the folders in Teams. I'm not sure what the issue is, or how to solve it. Any advice
would be greatly appreciated. Thank you so much!