Unity 3D is a powerful game development platform that allows you to create both 2D and 3D games. While designing a game in Unity, you may find yourself working in the 2D view, but at some point, you may need to switch back to the 3D view to work on certain elements. If you're unsure how to exit the 2D view in Unity 3D, here's a simple guide to help you do just that.

1. Open Unity 3D:

Launch the Unity 3D application on your computer and open the project in which you want to exit the 2D view.

2. Switch to 3D View:

To exit the 2D view and switch to 3D view in Unity 3D, follow these steps:

a. Look for the '2D' button located at the top of the Scene view.

b. Click on the '2D' button. This will open a dropdown menu.

c. In the dropdown menu, you will see the '3D' option. Click on the '3D' option to switch to the 3D view.

3. Customize the View:

Once you have switched to the 3D view, you can customize the view according to your preferences. You can adjust the camera angle, zoom in or out, and navigate the 3D environment using the navigation controls.

4. Save and Apply Changes:

After you have made the necessary changes in the 3D view, remember to save your project. Click on the 'File' menu and select 'Save' or 'Save As' to save your updated project.

By following these simple steps, you can easily exit the 2D view in Unity 3D and switch to the 3D view to continue working on your game development project. Whether you're creating a 2D or 3D game, Unity 3D provides the tools and flexibility to bring your vision to life.