An OBJ file is a standard 3D image format used in computer graphics. It contains information about the geometry, texture, and other attributes of a 3D model. OBJ files are commonly used in 3D modeling software for creating and rendering 3D objects. They store data in a simple, human-readable format, making them widely used for exchanging 3D models between different software applications. OBJ files can contain vertex coordinates, texture coordinates, vertex normals, and other information necessary for rendering a 3D model. When working with 3D modeling software, understanding OBJ files is essential for importing and exporting 3D models. They are versatile and widely supported, making them a popular choice for sharing 3D models across different platforms and software applications. In conclusion, OBJ files are an essential part of the 3D modeling process, and understanding their structure and usage is valuable for anyone working with 3D graphics.