Information
File validation in Word must be enabled.
GROUP ID: V-223418
RULE ID: SV-223418r960921
This policy setting allows the file validation feature to be turned off.
If this policy setting is enabled, file validation will be turned off.
If this policy setting is disabled or not configured, file validation will be turned on. Office Binary Documents (97-2003) are checked to see if they conform to the file format schema before they are opened.
Solution
Set policy value for
User Configuration >> Administrative Templates >> Microsoft Word 2016 >> Word Options >> Security >> Turn off file validation
to 'Disabled'.