The contents of that xml file...is it just a bunch of file paths to the music files structured as follows or similar?
..\Music\Tracks\Evanescence - Going Under.mp3
..\Music\Tracks\Watershed - Undone.mp3
..\Music\Tracks\Michael Jackson - The Way You Make Me Feel.m4a
If so, then it should be possible to rename that .xml to .m3u (a format which MusicBee will be able to read). But we'll get to this once you confirm the above.
Is there any way to get musicbee to read and be able to edit those playlists?
Technically, no, at least not on an ongoing basis and without some manual intervention. That .xml format won't be compatible with MusicBee right off the bat.
Edit:
MusicBee can currently read playlists on an .m3u and .mbp (MusicBee's own) format.
It can also write to the following formats:
