1. Click the target model file you want to use in the project window, set the Animation Type to Humanoid in the Rig option of the Inspector window, and click Apply.
2. Right click in the project window -> Create -> Animator Controller, and assign it to the controller in the animator component of the character in the scene.
3. In the Animator window, you can right-click to create a state, and drag and drop the action file (green triangle) in the action package to use it.