A (Standard for the Exchange of Product Data), also known by its ISO designation ISO 10303 , is a neutral 3D CAD exchange format. It is primarily used to share and edit high-precision 3D models across different software platforms, making it an industry standard for engineering, manufacturing, and aerospace. Key Features and Uses
: Files retain "solid" information, allowing users to modify faces and features in a new program, which is significantly easier than editing a raw mesh. 3D Step Files
: Unlike mesh formats (like STL), STEP files use NURBS (Non-Uniform Rational B-Splines) to represent 3D geometry as exact mathematical curves rather than faceted triangles. A (Standard for the Exchange of Product Data),