Reducing the timeframe of an Animation

I have a Generic animation which has become too long, I’ve found that is pretty easy to do. But Unity doesn’t make it easy to reduce the timeframe of an Animation. I want to cut it down by a second or a couple of frames. I can I do that? I tried adjusting the “Samples” but that added samples to the animation.

If you want an animation to be shorter open the animation in the animation window and sale the keyframes closer together. Usually accomplished by selecting all and moving the right keys towards the left.
This documentation section may also be helpful.

Great. Thanks!