Just checked and it does say propelerhead reason files but which ones I dont know here is the list of ones it can change to and from!
http://www.cdxtract.com/formats.php
Akai S1000 / S3000 EMU Soundfont
Roland S7xx
MESA
EMU III / ESI / IV / EOS Akai S5000 / S6000
Akai S5000 / S6000 NI Reaktor map
EMU Soundfont Creamware Pulsar STS
Akai MPC 2000/3000 Tascam GigaSampler/Studio
Tascam GigaSampler/Studio Emagic EXS24
Emagic EXS24 Steinberg Halion
Digidesign SampleCell VSampler
Creamware Pulsar STS NI Kontakt
Kurzweil PropellerHeads Reason NN-XT
SampleCell (Mac only)
NI Battery
Wav Wav
Aiff Aiff
Akai MPC .snd MP3 (PC only)
Creamware Pulsar .s
Sound Designer II (Mac only)
Like i said check it out not to sure about that perticular format your looking for but it does say propellerheads reason
Hope you find a solution