Hello @mk7z
Encrypt - you can’t open a file without password.
Protect - you can open a file, but you have to follow file’s restrictions (for example, file owner set up ‘Comments only’ for the file).
For ‘Encrypt’, a user will face ‘enter a password’ pop-up message.
For ‘Protect’, there will be yellow pop-up message with restriction description like this one:
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