STL (Stereolithography) is a file format used primarily for 3D printing and computer-aided design (CAD). It represents a three-dimensional surface geometry of a solid model by approximating its shape using triangular facets. This format is widely supported across different CAD software and is crucial for creating physical prototypes and models through additive manufacturing processes.

Read more:

Exploring 3D Model Formats: A Comprehensive Guide

What is GLTF: A Complete Guide