Furthermore, it lets you convert STL to other 3D files like GLB, FBX, 3MF. Also, you can convert the STL model to 2D images and video (GIF, MP4) formats. The conversion is possible through its ...

Bear File Converter is useful if you want the DXF file to be in the STL file format. It's an online converter. dxf2gcode can save a DXF file to the G-CODE for Linux CNC format with the NGC file ...

The file types you can convert to are much more limited—there are only six of them—but Spin 3D includes outputs in 3DP and 3DX in addition to STL and OBJ formats.

However, in real life, you may have an STL file and nothing else. The video shows how you can convert such an object into a proper FreeCAD part. We liked that the example part isn’t a boxy design.

An STP file is most likely a STEP 3D CAD file. Open one with Fusion 360 or FreeCAD. Convert to STL, DWG, DXF, etc., with those same programs or a dedicated converter.