If you're working on 3D modeling and rendering projects, you may need to export OBJ files from Maya to use in other software applications. OBJ is a common file format for exchanging 3D model data, and it's compatible with a wide range of 3D software. Here's how to export OBJ from Maya:

1. Open your Maya file and make sure your 3D model is ready for export.

2. With your model selected, go to File > Export Selection.

3. In the Export Selection window, choose 'OBJexport' from the File Type drop-down menu.

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

5. Click on the Export button to save your model as an OBJ file.

When exporting OBJ files from Maya, you'll also have the option to customize export settings such as the scale, smoothing groups, and material options. Make sure to adjust these settings based on your specific project requirements.

Once you've exported the OBJ file, you can import it into other 3D software such as Blender, 3ds Max, or Unity for further editing, rendering, or animation. OBJ files can preserve the geometric information, texture coordinates, and material definitions of your 3D model, making it a versatile file format for collaboration and interoperability.

In summary, knowing how to export OBJ from Maya is essential for 3D modeling and rendering professionals who work with different software tools. By following the simple steps outlined above, you can easily transfer your 3D models between Maya and other 3D applications, opening up new creative possibilities for your projects.