FS sceneries to X-plane

After contacting X-plane author and few other who might know about
possibility to convert FS sceneries to X-plane, I'll ask now here,
does anyone know, if there is already tool to make that conversion?

I'm X-plane fan and I would like to use those fabulous sceneries
people have made for FS...(yes, there is much much more nice sceneries
for FS than for X-plane). I'm aware it should't be too complex but for
some reason, tool for such conversion most obviously doesn't exist.

If anyone here knows more about this topic, it would be good to know
more..

Thank you!

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- Tommi -