Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...

If you are struggling to keep track of performance metrics and identify areas needing improvement? You will be pleased to know that you are not alone. Many people find it challenging to sift through ...

Have you ever grouped data in Excel only to find your months sorted alphabetically instead of chronologically? It’s a frustrating quirk of the GROUPBY function, one that can turn a clean dataset into ...