Excel online course - focus on formulas

Hi all,

I’m looking for a comprehensive Excel online course. I’m very familiar with Office products and would consider myself an expert. However, my weak spot is Excel - for sure. Especially when it comes to formulas.

I’m looking for a comprehensive Excel online course that focuses on formulas (nested formulas, vlookup, pivot tables) and offers lots of practical case studies - not just explaining.

It would be great if the course would have a mix of video and text explanation. And - as I said before - lots of hands on training.

I’d rather pay for a really great course than a mediocre free one.

Any recommendations? Thanks a lot!