Turns out half my old formulas were just dynamic arrays in disguise, written the long way.

Use an Excel array function to create an AverageIf function Your email has been sent Excel doesn't have a built-in AVERAGEIF() function, but you can still average values, conditionally. Excel has ...

An curved arrow pointing right. {} These brackets mean something magical is happening inside your Excel formula. An "Array" function allows you to perform mathematical operations on many cells instead ...