Can I Open a STP File in AutoCAD?

Can I Open a STP File in AutoCAD?

When it comes to working with CAD (Computer-Aided Design) files, AutoCAD is one of the most popular software applications. It offers a wide range of features and capabilities that make it a go-to choice for designers and engineers.

However, AutoCAD primarily supports its native DWG file format. So, what do you do if you receive or need to work with a STP file? Let’s explore whether you can open a STP file in AutoCAD.

Understanding STP Files

STP, which stands for Standard for the Exchange of Product model data, is a file format used to represent 3D models in CAD software. It is widely supported by various CAD programs, including SolidWorks, Fusion 360, and CATIA. The STP file format stores data in a neutral format that allows interoperability between different CAD software.

AutoCAD’s Compatibility

AutoCAD has limited support for opening and editing STP files directly. Unlike some other CAD software, AutoCAD doesn’t natively import or export STP files. However, there are workarounds available to overcome this limitation.

Using Third-Party Plugins

To open STP files in AutoCAD, you can make use of third-party plugins or add-ons specifically designed for this purpose. These plugins extend the functionality of AutoCAD by adding support for importing and exporting various file formats, including STP.

To find these plugins, you can search online or visit Autodesk’s App Store. Some popular plugins include “STL Importer”, “STEP Import for AutoCAD”, and “Autodesk Inventor Fusion”. These plugins enable you to directly import STP files into AutoCAD, allowing you to work with them seamlessly.

Converting STP Files

If you don’t want to rely on third-party plugins or add-ons, another option is to convert the STP file into a format that AutoCAD can handle. One commonly used format is the IGES (Initial Graphics Exchange Specification) format, which AutoCAD supports.

You can use CAD software that supports both STP and IGES formats, such as Fusion 360 or SolidWorks, to convert the STP file into an IGES file. Once converted, you can then import the IGES file into AutoCAD without any issues.


While AutoCAD doesn’t directly support opening and editing STP files, there are options available to work with them within the software. By using third-party plugins or converting the files into a supported format like IGES, you can seamlessly incorporate STP files into your AutoCAD projects.

Remember, it’s always essential to verify the compatibility and functionality of any third-party plugins before downloading and installing them. Additionally, consider keeping backups of your original files in case any issues arise during the conversion or importing process.

In summary:

  • AutoCAD does not natively support opening STP files.
  • You can use third-party plugins/add-ons for importing STP files in AutoCAD.
  • An alternative approach is converting STP files to a compatible format like IGES before importing into AutoCAD.

With these options at your disposal, you can effectively work with STP files in AutoCAD and leverage its powerful set of tools and features for your design projects.