Information
Files from Internet zone must be opened in Excel in Protected View mode.
GROUP ID: V-223340
RULE ID: SV-223340r961086
This policy setting allows you to determine if files downloaded from the Internet zone open in Protected View.
If you enable this policy setting, files downloaded from the Internet zone do not open in Protected View.
If you disable or do not configure this policy setting, files downloaded from the Internet zone open in Protected View.
Solution
Set policy value for
User Configuration >> Administrative Templates >> Microsoft Excel 2016 >> Excel Options >> Security >> Trust Center >> Protected View >> Do not open files from the Internet zone in Protected View
to 'Disabled'.