I am trying to access a website which I have previously used successfully multiple times a day. It has two embedded Excel files.
Yesterday, I tried to load the page and got the attached message. I have deleted all temporary files. I have tried in both Chrome and Safari and am using a Mac, on OS Catalina 10.15.6
Downloading the files and using them from my local machine is not an option.
@ellcres1 I am also having this same issue. I was able to access my file from both the app and on the browser. Today I receive the same error when I attempt to open via the app, however the browser version will open fine.