This is just one track which I understand was always put as the last song when George would make individual tapes for different people. I heard that it was a short song but this is not even a full 30 seconds long so I don't kknow if this is the full song or not.
I found it on THIS YOUTUBE CHANNEL and I did leave a comment asking if he might have more of the demos. I think I know the answer because he probably would have included them if he had anything else but it doesn't hurt to ask.
UPDATE: The YouTube channel did respond and he said he does not have anything else by the Executive. The search continues.