Policy
Stop checking for table header accessibility information
This policy setting prevents the Accessibility Checker from verifying that tables have a header row specified. If you enable this policy setting, the Accessibility Checker will be prevented from verifying that tables have a header row specified. If you disable or do not configure this policy setting, tables will be checked for header rows and any issues will appear in the Accessibility Checker.
77bd3a0a910a L_StopCheckingTableHeaderAccessibilityInformation Registry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\excel\accchecker\tableheaders (enabled) = 0
HKCU\software\policies\microsoft\office\16.0\excel\accchecker\tableheaders (disabled) = 1 Policy notes
This policy setting prevents the Accessibility Checker from verifying that tables have a header row specified. If you enable this policy setting, the Accessibility Checker will be prevented from verifying that tables have a header row specified. If you disable or do not configure this policy setting, tables will be checked for header rows and any issues will appear in the Accessibility Checker.