[Malwarebytes blocking excel]

19 hours ago, Arthi said:

Hi All,

Can you make sure that "Block penetration testing attacks" setting is also turned OFF. You can find it near the Advanced Exploit Settings button.

Thanks.

That's the one preventing the opening of the Excel files. Switching it off fixed it -- even on OneDrive. But is the switching off of protection really the answer?

[Malwarebytes blocking excel]

Could it be related to OneDrive? I had a sheet in OneDrive, and even after updating everything, Excel was still blocked. Then I moved the sheet from OneDrive to Dropbox, and bingo, it worked.