I’m pretty bad at remembering file names, so I wrote a program that displays the content of STL files right in the Windows File Explorer. No need...
My model is not showing correctly. There is a cone shaped indention into the model, this is missing. Using another STL viewer online shows it...
I can't help but notice that the 3D model viewer when uploading the 3D model is far better than the 3D model viewer at the end of the preview...