I am running into this issue as well. Interestingly, the automations with Excel Application Scope work fine for me on machines that have Excel 365, but they fail on Excel 2016. Trust Center is setup correctly with the right types of files allowed.
I am running into this issue as well. Interestingly, the automations with Excel Application Scope work fine for me on machines that have Excel 365, but they fail on Excel 2016. Trust Center is setup correctly with the right types of files allowed.