Please ensure your 3D model meets the following printer-specific requirements: File Format— Your 3D model file must be saved in STL (binary.stl) format. Make sure to export your design in "millimeters ...

Starting in version 2.5.0-beta1, PrusaSlicer can import STEP format 3D models. An imported STEP file is converted to a triangle mesh on import (making it much like a typical .stl or .3mf file ...