After previously discussing permutations, Dr. James McCaffrey of Microsoft Research uses step-by-step examples and full code presentations to explore combinations. A ...

When I first discovered Excel's dynamic array functions, my entire approach to spreadsheet design shifted. They replaced my clunky, multistep workarounds with smart, self-expanding formulas that adapt ...

Stop wasting hours manually sorting, deduplicating, and filtering your data in Excel. Instead, combine FILTER, UNIQUE, and SORTBY to create a self-cleaning data engine that does all the work from a ...

One of the most powerful features of Excel is the array—a formula designed to act simultaneously on sets of two or more values in order to calculate other values. Yet, because arrays appear to be ...