If you spend a lot of time using Microsoft Excel at work, learning some tricks will help you get more done and get results to your boss faster. And, hopefully, that will result in some promotions and bonuses for you.
So don’t take this lightly. Learning shortcuts and formulas can feel tedious at first - as you’ll want to do it the way you’ve always done it - but, once you get used to them, you’ll feel better about your skills, proud of your expertise, and wondering how you ever used to do it the old way.