If you're a 3D artist working with Maya, you may need to export your models to other software or platforms that support the Wavefront .obj file format. Fortunately, Maya provides a straightforward way to do this. Here's a step-by-step guide:

1. Select the geometry you want to export. In the Maya viewport, make sure the objects you want to export are selected.

2. Navigate to File > Export Selection. This will open the Export Selection dialog box.

3. Choose 'Wavefront Obj (*.obj)' from the 'File Type' dropdown menu.

4. Specify the file name and location where you want to save the .obj file.

5. Optionally, you can adjust the export settings in the Export Selection Options window. This allows you to customize how your model is exported, including options for materials, normals, and more.

6. Click 'Export' to save your model as an .obj file.

That's it! You've successfully exported your model from Maya in the .obj file format. You can now use this file in other 3D software or share it with others who may need to use it. Remember that the .obj format does not support animation or rigging information, so be sure to consider the limitations of this file type for your specific needs. With this simple process, you can easily transfer your 3D models between different software and platforms, making it easier to collaborate with others and work on projects that require file compatibility. Now that you've learned how to export OBJ in Maya, you can confidently share and use your 3D models across a variety of applications.