Which file format is used to save Autodesk Inventor 3D models?

The file format used to save Autodesk Inventor 3D models is the .ipt format, which stands for Inventor Part file. This format is specifically designed for storing 3D part designs created in Autodesk Inventor.

When a user creates a 3D model, the .ipt file encapsulates all the geometry, features, and parameters that define the part. This enables users to not only store their work but also easily manipulate and modify the design within Inventor itself. It is the native file format of Inventor, ensuring compatibility with the software's tools and capabilities, as well as ease of access to all necessary part features.

Other file formats mentioned serve different purposes: .dwg and .dxf are primarily used for 2D drawings and are widely utilized in various CAD applications for exchanging drawing data. .stl is used primarily for 3D printing and does not retain the parametric data or features of a model, limiting its use to mesh-based geometry. Thus, the .ipt file format is the correct and most suitable choice for saving 3D models within Autodesk Inventor.