> On Sep 29, 2015, at 2:41 AM, Ben Andrus <[log in to unmask]> wrote:
>
> As a sort of work-around, I have chosen to have NWP save to .rtfd ...
That suggests a solution! If you save a document in "Nisus Compressed Document Format", its extension will be zrtf, which I do not believe is used by any other program. You can specify in Get Info that NWP should be the default application for zrtf documents.
Bob