This is a Mac OSX workaround for the Stationary Pad functionality of Pro Tools. When you create a template for a session, life is good, but or some reason OSX is broken when you try and use it in the proper fashion. It constantly makes a copy of the template each time you open it and they are locked files and thus a pain in the arse to dispose of.
The solution is quite simple. Double Clicking on the file, NO GO, Use the Open… menu command from PT HD, NO GO.
But when you drag the template over the PT icon in the dock… VOILA, no extra files, just a new session with your settings. So nice.