If you're a 3D designer using Creo, you may want to save your designs as OBJ files for 3D printing or rendering purposes. Here's a step-by-step guide to help you do just that:

1. Open your Creo design in the Creo Parametric software.

2. Once your design is open, go to the 'File' menu and select 'Save As'.

3. In the 'Save As' dialog box, choose 'Wavefront Object (*.obj)' as the file type.

4. Select the location where you want to save the file and enter a name for the OBJ file.

5. Click 'Save' to export your Creo design as an OBJ file.

6. You may also be prompted to adjust the export settings such as units, scale, and other options.

7. After adjusting the settings, click 'OK' to proceed with the export.

8. Your Creo design will now be saved as an OBJ file which can be used for 3D printing or rendering in other software.

By following these simple steps, you can easily save your Creo designs as OBJ files and use them for various 3D applications. This process allows you to extend the use of your designs beyond the Creo ecosystem and opens up opportunities for 3D printing and rendering projects.