Show Alert if Excel is not the default for its associated file types

This policy setting controls the "Tell me if Microsoft Excel isn't the default progam for viewing and editing spreadsheets" option found under File tab | Options.

If you enable or do not configure this policy setting, Excel will show an alert if it isn't the default progam for viewing and editing spreadsheets. This is the default behavior.

If you disable this policy setting, Excel will turn off the alert.

Supported on: At least Windows 7
Registry HiveHKEY_CURRENT_USER
Registry Pathsoftware\policies\microsoft\office\16.0\excel\options
Value Namealertifnotdefault
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

excel16.admx

Administrative Templates (Computers)

Administrative Templates (Users)