Microsoft is opening up Excel to developers with a new JavaScript API. It will let developers use custom data types like images, cards, and arrays.

Microsoft is making some improvements to how formulas work in Excel, with a new feature called Dynamic Arrays that allows formulas to output values to more than one cell at a time.

Excel doesn't have a built-in AVERAGEIF() function, but you can still average values, conditionally.

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 ...

To check if a value exists in an array, we can loop through its elements. However there is another solution! You can use the INDEX () function, native to Excel and in the case of two-dimensional ...