Are you tired of struggling to open STP files? Whether you're a professional engineer or just someone who received an STP file and can't open it, we've got you covered! Here are some free software options that will help you easily view and open STP files without any hassle.

1. FreeCAD: This open-source parametric 3D CAD modeler is perfect for viewing and editing STP files. It's easy to use and offers a wide range of features for all your 3D modeling needs.

2. eDrawings Viewer: Developed by SOLIDWORKS, eDrawings Viewer is a free software that allows you to view and share STP files with ease. It's user-friendly and supports various file formats, making it a versatile option for opening STP files.

3. Autodesk Viewer: If you're looking for a web-based solution, Autodesk Viewer is an excellent choice. It supports STP files and allows you to view 2D and 3D designs in your browser without the need for any software installation.

4. OnShape: This cloud-based 3D CAD software offers a free plan that includes the ability to view and collaborate on STP files. It's a great option if you need to access and work with STP files from any device with internet access.

5. 3D-Tool Free Viewer: With support for various 3D file formats, including STP, this free viewer offers a simple and intuitive interface for opening and viewing STP files. It also provides measurement and mark-up tools for added convenience.

With these free software options, you'll never have to worry about struggling to open STP files again. Whether you're a professional engineer, a student, or just someone who needs to view an STP file, there's a free solution out there for you. Say goodbye to the frustration and start easily accessing and viewing STP files today!