The Open STEP (Standard for the Exchange of Product) file format is a widely used standard for representing 3D models in CAD software. It provides a common format for exchanging data between different CAD systems, facilitating interoperability and collaboration across various platforms. The STEP file format is based on a neutral data exchange format, allowing for seamless transfer of 3D models between different software without loss of information or fidelity. This makes it a preferred choice for industries such as aerospace, automotive, and manufacturing, where complex 3D models need to be shared and utilized across different design and engineering applications. By understanding the Open STEP file format, engineers and designers can ensure seamless exchange of 3D data, leading to efficient collaboration and improved productivity in the development of products and designs.