This article talks about what is an STL file and how you can open and view it in Windows 11/10. STL stands for Standard Tessellation Language and Standard Triangle Language.

May 16, 2018 STL files are everywhere. When there’s something to 3D print, it’s probably going to be an STL. Which, as long as the model is good just as it is, is no trouble at all.

After editing the STL model, you can save it in its original format or convert it to STL, PLY, VRML, DAE, 3MF, and other formats. To do that, you can use the File > Export feature.