The lookup function in Excel can save you a lot of time and effort, but only if you actually know how to use its many forms and alterations.

Because the functions you're about to use produce spilled arrays, and spilled arrays don't work in formatted Excel tables, you need to type the formulas in areas of your spreadsheet that are not ...

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 ...

Populating a dropdown with a dynamic list is easy thanks to Microsoft Excel’s UNIQUE() dynamic array function.

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.

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.