excel files no longer opening

[Jesse Lima]

I have been able to open excel files from trello up until this morning.  Now I am receiving "The file could not open in protected view".  My neighbor is getting a different message this morning, "The file is corrupt and cannot be opened."  Any trouble shooting tips will be appreciated.

[Alex Waite]

Hey @Jesse Lima - is this happening for all Excel files or just one? If you're getting a corrupted error, this sounds like there's something wrong with the file, not Trello.