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 ...

Dynamic arrays change the rules for formula output in Excel. When I write a formula that returns a list by default, I need to decide whether I want the result to spill across a range of cells or ...

The syntax for counting the number of unique values from a list of a column using the array formula is as follows: =SUM(IF(COUNTIF(<first cell from which you count the number of unique values>:<last ...

In Microsoft Excel, SPILL errors occur when a formula returns multiple results, and Excel cannot return the results to the grid. In this tutorial, we will explain the ...