My X-converter crashes in xp on EIII files, or won't let me at 'em if I change the compatibility year. Other files too; I hate it.
But the demo of Chicken Systems Translator will translate the EIII banks to Emulator X ones.
I found that you can load a lot faster from a virtual CD player that plays an ISO image file.
Used "Daemon Tools Lite" for it, but it got inconsistent behavior with X2 - needs investigating.
CDXTRACT works with it, but it will work with an ISO image anyway. Fast.
This program is good for image file making:
http://www.chrysocome.net/dd ( dd for windows ).
The dd program came from Linux, so you could probably use it easier, with a front end, if you have Linux, or a live CD of it.