Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and ...

Overview: MIS reports convert raw business data into clear and useful informationExcel formulas and pivot tables simplify ...

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 ...

Move beyond the basics of sums and averages. These tips open up all kinds of opportunities for working with spreadsheet data. Editor’s Note: This article was originally published in Sept. 2012 and the ...