Help with File Extension

I have a game, called Secret of the solstice. It was shut down by dnc. I have the client files. I wanted to extract all of the sprites, texture, models from it but not sure how to do it. I looked in the data folder, where i believe they are. I can't seem to find a way to extract them or open them.

The file extensions are

.DRA
.EBD
.IRX
.DUP
.LST
.XBD
.XAL
.XAR
.XBD
.XEE
.XBP
.XEL
.XER
.XFC
.XHD
.XHR
.002
.003
.004
.005

You need to create a file viewer/extractor since the files are packed. If you're unlucky its also encrypted.

Without sample files, I think it's pretty hard to give you an exact answer..