Find out what is an STL file and how you can open and view an STL file with .stl extension in Windows 10. It is native to the stereolithography CAD software.

The Conclusion Following these steps lead you to the creation of high quality STL files for 3D prints that can then be easily fed to your 3D printer, even if you’re a beginner.

If you want to create a 3D model in STL format or edit an existing STL file in Windows 11/10, use these free STL editors.

An imported STEP file is converted to a triangle mesh on import (making it much like a typical .stl or .3mf file) which means that slicing all happens as one would normally expect.