I downloaded the raw files in iPhotos as originals to a folder on my desktop. Then downloaded the jpg files in iPhotos to the desktop. I then closed the Photos app. and did an option open and chose the Photos library. Then I uploaded the files from the desktop to the Photos library in the Photos app. My goal is to get rid of the iPhoto library, that is in the Photos app, to create more space. All pictures did upload. I even did some editing on the raw photos because they were back in their original state as I expected. That worked. Next I went back to the iPhotos library and deleted the files that I had moved. When I tried to export any of imported pictures I got a message saying can't find the originals. The only way I was able to recover my files was to go into the recently deleted folder in the iPhotos library. I just want to be able to export these files from the Photos library, without a search for original files. I have backed the material in an external drive, but that is not the point.