so its basically the edited version of the raw file..but how is the xmp file opened..photoshop dosent to pick it upWhen you open the RAW files and set the settings using the RAW converter for the JPEG an xmp file is made storing the changes you make - so that if you wish you can go back to the original from RAW settings you made a shot. I would keep them along with the RAW version of each shot - even after editing and saving in another formate - you never know when you might want to go back and start again