@LadyC62, I am hoping you have worked it out, but in case you haven't, you shouldn't try to open that file on your computer as it is a binary (BIN) file that contains the firmware for the printer. Instead, copy the .BIN file to the SD card supplied with the printer (it comes in a little USB caddy to help people who dont have card readers) and then you should be back on track for following the video instruction.