If you're looking to work with OBJ files in ZBrush for 3D modeling and sculpting, you're in the right place. ZBrush is a powerful tool for artists and designers, and opening OBJ files is a common task. Here's how to do it:

1. Launch ZBrush: First, open ZBrush on your computer. If you don't have ZBrush installed, you'll need to download and install it from the official website.

2. Import OBJ File: Once ZBrush is open, go to the 'Tool' palette and click on the 'Import' button. This will allow you to browse your computer and select the OBJ file you want to open.

3. Adjust Settings: After selecting the OBJ file, a dialog box will appear with import settings. You can adjust options like scale, size, and orientation to ensure the imported model looks as expected.

4. Open OBJ File: Once you've configured the settings, click the 'OK' button to import and open the OBJ file in ZBrush. The file will appear in the ZBrush workspace, and you can start working with it using ZBrush's powerful sculpting and modeling tools.

5. Save Your Work: After making changes to the OBJ file in ZBrush, remember to save your work regularly to avoid losing progress. You can do this by going to the 'Tool' palette and clicking on the 'Save As' button.

That's it! You've successfully opened an OBJ file in ZBrush and are ready to start creating amazing 3D models and sculptures. With ZBrush's extensive toolset and features, you can bring your creative visions to life with ease. Whether you're a professional artist or a hobbyist, ZBrush provides the tools you need to excel in 3D modeling and sculpting.

Now that you know how to open OBJ files in ZBrush, you can take your 3D projects to the next level. Experiment with different models, explore ZBrush's capabilities, and let your imagination run wild. With practice and dedication, you'll be creating stunning 3D artwork in no time. Happy sculpting!