These files have to be generated by someone using a DX8, then they can save them and share them. The spektrum community website has quite a few that have been generated by the guys at Horizon, but for things from other brands, you will have to find someone who has already set one up and see if you can get them to send it to you. Then you load it onto your SD card just like you would from the spektrum site and load it into a model pre set. It's still going to be from another plane and you will have to fine tune it, but it will have the switch selections and servo reversing etc done for you. I wouldn't even think of flying it until you have verified everything of course.