I have Milkshape 1.8.4, and it includes "Sims2 UniMesh ObjX Data Split Import V4.9" among the formats in its "import" list.  Not sure whether that means it will do what you want, though....

===========================sigline======================================================

Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.