Inexpensive online courses for Excel

Hi Mommas! I am transitioning into a manager role that deals with higher data analytics. The last time I’ve dealt with data set at that level was during my MBA program. So needless to say, I am RUSTY!

I’ve googled for excel courses but there’s an overload of certificates that are thousands of dollars and a bunch of random independent courses that I’m not confident will do what I need.

So any help on courses (even reasonably priced - a few hundred) is greatly appreciated!