If you're a Photoshop CS6 user looking to work with 3D models, you might be wondering how to open OBJ files in the software. While Photoshop CS6 doesn't have native support for 3D file formats, you can still import and work with OBJ files with the help of a plug-in called Adobe Photoshop 3D Bridge. Here's a step-by-step guide on how to do it:

1. Install Adobe Photoshop 3D Bridge: First, you'll need to download and install the Adobe Photoshop 3D Bridge plug-in. This plug-in is available for free from the Adobe website, and it allows Photoshop CS6 to import and work with 3D models in various formats, including OBJ.

2. Open the 3D Bridge panel: Once the plug-in is installed, open Photoshop CS6 and go to 'Window' > 'Extensions' > 'Adobe Photoshop 3D Bridge' to open the 3D Bridge panel. This panel will be your gateway to importing and working with 3D models in Photoshop CS6.

3. Import the OBJ file: In the 3D Bridge panel, click the 'Import' button and navigate to the location of your OBJ file. Select the OBJ file and click 'Open' to import it into Photoshop CS6.

4. Edit and manipulate the 3D model: Once the OBJ file is imported, you can use Photoshop CS6's 3D tools to edit and manipulate the 3D model. You can rotate, scale, and position the model to fit your design needs, as well as apply textures and materials to the model.

5. Export or save your work: After you've finished editing the 3D model, you can export it as a new file or save your work in Photoshop CS6's native PSD format. This will allow you to continue working on the 3D model at a later time or integrate it into your design projects.

By following these steps, you can open OBJ files in Photoshop CS6 and start incorporating 3D models into your design work. Whether you're creating 3D logos, product mockups, or visual effects, Photoshop CS6's 3D capabilities can take your designs to the next level. With Adobe Photoshop 3D Bridge, you can bridge the gap between 2D and 3D design and unleash your creativity in new and exciting ways.