Set default file block behavior

This policy setting allows you to determine if users can open, view, or edit Excel files.

If you enable this policy setting, you can set one of these options:
- Blocked files are not opened
- Blocked files open in Protected View and can not be edited
- Blocked files open in Protected View and can be edited

If you disable or do not configure this policy setting, the behavior is the same as the "Blocked files are not opened" setting. Users will not be able to open blocked files.

0. Blocked files are not opened
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\excel\security\fileblock
   Value Name	openinprotectedview
   Value Type	REG_DWORD
   Value	0

1. Blocked files open in Protected View and can not be edited
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\excel\security\fileblock
   Value Name	openinprotectedview
   Value Type	REG_DWORD
   Value	1

2. Blocked files open in Protected View and can be edited
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\excel\security\fileblock
   Value Name	openinprotectedview
   Value Type	REG_DWORD
   Value	2