Yes: each 3D scan includes a source Ztool file, that works with all versions of Zbrush. It includes several subdivision levels and has clean UVs, and utilizes the same texture maps as the other models. The Ztool can be used to generate other mesh variations not covered by the default downloads. For example, the High.obj/fbx file is capped at around 1 million polygons. The Ztool is generally much higher than this and approximates the original scan data. It could also be used as a basis for sculpting extra custom models if required.