!'ve a new Nikon 7200, and the updated online version of Lightroom, which I run on a new imac. with Yosemite 10.10.4. Lightroom will open but not import raw files, with the message "the files are not recognized by the raw format support in Lightroom. (71) I've looked at the file, and it doesn't appear to be locked. I have read and write permission. "staff" doesn't, but I don't know who that might be.