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What is an STL File and How is it Created?

STL extension, which stands for “Stereolithography”, is a type of format obtained by dividing the surfaces of 3D designed models into many triangles in a mathematical order, and these triangles represent the 3-dimensional model with three points. The detail of the model increases in direct proportion to the number of these triangles. The STL file type is the most widely used 3D printing format. STL files store the volume information of 3D models.