using up exercise calories?

I exercised today and at 11:00pm I still have 348 calories available to eat due to my exercising. Do you eat these extra calories and not? If you don't do you lose weight faster?

This is how I personally handle exercise calories.

The question you ask yourself would be "Am I still hungry?"

If so, I would eat whatever amount of those calories you have left over that it would take to satisfy you.

If you're not hungry I wouldn't bother.

And yes, you likely would lose weight faster as you are still technically eating at a reduced caloric intake.