Use software version zbrush2021.1.1. The object is a solid closed high model, retaining the subdivision level (see screenshots for details), and the eyeball is an independent subtool. No UV, no map, default material. The model that has been optimized for surface reduction is exported, including obj, Stl and blender format files. The poly count after reduction is 362576. You can get more information from the preview pic.If any question please write to me.