Using Captureshop 4x, 54M, we had been only dragging files from the contact sheet to a folder to be archived as a back up. Of course, we had been exporting the file as our working file. In doing so, we have not been able to open any of the files to date. We realize that the procedure we chose was incorrect. The files have extensions that are .cs16 or .csm Do you have any suggestions to open these files. We can't open them in Captureshop 4x or Captureshop 5.5x. We have tried to trick the files to open by changing the extensions but that hasn't worked either (to .sti, dng, tif, etc). Captureshop does not have an import feature. We have tried to open with Photoshop CS3, Adobe DNG, Brumbaer tools, and both captureshops. The files were written to DVD on a PC but everything else in the capture was on Macs.