Can't open STL file

Hi everyone,

I coverted my sketchup file to stl file and now I can’t open the stl file. More correctly, when I open stl file it writes: "This does not appear to be Sketchup model! "
I don’t know what the problem is, why I can’t see my sketchup model in stl file.

Kind regards

Stl is a different format, if you want to work with it in SU you need to import it not open it.

That make sense. Thank you very much for your reply.
Best wishes,