Could you import old scenarios from pre HD times to play them on steam (of course changed might have to be made for the new civs)?

A few years ago i used to play many scenarios on Gameranger. UDP Cliffs, Protect the One, Art of Defence (even made my own edit), Vampire Resurrection and more. I still got them saved on an old computer and i wonder if i could just drag them into the HD folder for scenarios? Or are there versions of them anywhere to get if that wouldn't work?