Excel Macro to Open a Password Protected File, Help Needed

Questions & Suggestions
2

  1. What does this screen in your Security/Privacy prefs look like on your system?

    CleanShot 2021-12-12 at 20.41.30@2x
    CleanShot 2021-12-12 at 20.41.30@2x1336×1174 171 KB

  2. The next time you run the macro and get that error message, try opening the KM Engine log (Help > Open Logs Folder), find the full error message text, and tell us what that says.