[URGENT] Convert file to STL file for 3D printing

Hi, need help.

after I downloaded the Sketchup STL File from Extension warehouse, it appears as sketchup-stl-2.1.4.rbz. and I can’t open it.
I need to export it so that I can 3D print it.

can someone help ?

Duplicate of: [URGENT] STL file for 3D printing
I’m closing this thread to keep the discussion in one place.