...also, like in the case of the Zoltar models- he has embeded only one or two SIMPLE booleans in his models- you need to UnGroup the models and clicking on the sections- MESHes all bring up the Mesh smoothing Dialog box, ...Booleans will NOT...

Once you've deleted the little Devils- Re-Group and do the Easter Egg thing (Control-D)... I always export in 3DS, OBJ and COB---all THREE-- as different modeling apps which made the models seem to "prefer" one over the others- and you will have THREE choices to see which model looks the best in your new program- Carrara, Vue, etc. (Because even the other prgrams have their OWN favorite reading-in model formats.)