The OBJ file format is a popular file format used in 3D modeling and design. It was originally developed by Wavefront Technologies for its Advanced Visualizer software, and has since become a widely supported format for 3D graphics and design applications. OBJ files can store not only 3D geometry, but also material and texture information, making it a versatile format for representing complex 3D models. The OBJ file format is text-based, which means it can be easily read and edited with a text editor, making it accessible to a wide range of users. It has become a standard for exchanging 3D models between different software applications, making it a crucial part of the 3D design and visualization pipeline. Understanding the OBJ file format is essential for anyone working with 3D modeling and design, as it provides a common language for sharing and manipulating 3D models across different software platforms.