These are the formats that you can convert From and To.
1. Bookeen Cybook Odyssey (R/W)
2. Kobo (R index only, W unencrypted/unobfuscated only)
3. StarDict (R/W)
4. XML (R/W)
5. CSV (R/W)
Refer here
http://code.google.com/p/penelope-dictionary-converter/.
Once you have converted to kobo you can use the Kobo desktop app. I first got to learn about kobo while researching on your topic
http://www.techyv.com/questions/kobo...-opening-files.