I'm assuming you are talking about .zip files. I like to keep a separate archive of the files so I can restore them in case I modify them too much within R.F. So....... I would "extract" them to their own archive folder then copy them into their respective folder in R.F. A plane file will have the file extension .pln, a color scheme file will have the extension .jpg or .tga and an airport will have the extension .airport.
If you still have trouble e-mail me at:
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