SolidWorks is a powerful CAD software commonly used for 3D modeling and design. While it supports various file formats, such as .sldprt and .step, opening OBJ files in SolidWorks requires an additional step. Here's how you can easily open OBJ files in SolidWorks:

1. Convert OBJ to a SolidWorks-Friendly Format: Since SolidWorks does not directly support OBJ files, you'll need to convert the OBJ file to a format that SolidWorks can read. One of the most common formats for SolidWorks is .STL (stereolithography), which is widely used for 3D printing and can be easily imported into SolidWorks. There are many free and paid online converters available that can quickly convert OBJ files to STL format.

2. Import the STL File into SolidWorks: Once you have the OBJ file converted to STL, you can import it into SolidWorks. Simply open SolidWorks, go to 'File' > 'Open', and select the STL file you converted from OBJ. SolidWorks will then import the file, allowing you to work with the 3D model just as you would with any other SolidWorks-compatible file.

3. Edit and Modify the 3D Model: Now that the OBJ file has been successfully opened in SolidWorks, you can start working on the 3D model. Use SolidWorks' powerful tools to edit, modify, and enhance the 3D model as per your requirements. You can add details, make changes to the design, and prepare the model for manufacturing or 3D printing.

By following these simple steps, you can easily open OBJ files in SolidWorks and incorporate them into your 3D modeling and design projects. This process allows you to take advantage of SolidWorks' robust features and capabilities while working with files in OBJ format, expanding the range of 3D models you can work with in your projects.