import from DAW?

Hi, we are a gospelfacility service with volunteers that need education, so before our utrack card I down loaded multitrack samples an let those play to the computer into the desk. In that way they can train to use the desk.
I can do that true the usb port of the utrack, but is there a way to import those DAW wav files in a way that the utrack disk will see them als a poly-wav and let ik be played.