Ok once the file is loaded you will need to move the file to the real flight folder under your home folder. Now move the file to " My Documents, RealFlight7, Vehicles, CustomVehicles" folder. If the file is zipped/compressed the unzip/uncompress it there.
Now in real flight 7 go to Simulation, import, kex or realflight archive (rfx, g3x).
Now close that out and move the mouse to the left of the screen and select your new vehicle. Once you select it, it will load into realflight.
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