XSB/XWB in Ultimax

[Skyla Doragono]

Hey guys, trying to come back with something I've been putting off for awhile, mostly because I don't even know where to start.

I've just decompressed some of the .pac files in the SE folder for the game, and each one has a .XSB and .XWB file in them.  The .XSB seems to be some kind of controller file or something; probably responsible for when the other file plays?  Either way, the .XWB file seems to be the actual sound files to be decompressed.  I've checked the header, and the header has DNBW in it?  Not sure what that is; googling didn't give me much.

Here are the files; I've included the XSB file too, just in case that may help:
http://www.mediafire.com/download/mzf27o...s/seam.xsb
http://www.mediafire.com/download/yuf6fd...h/seam.xwb
http://www.mediafire.com/download/kr1cr6...x/sebc.xsb
http://www.mediafire.com/download/9daibh...1/sebc.xwb