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 ...

The SORT and SORTBY functions let you extract certain columns and rows from a dataset and sort them in a certain order, all while preserving the source data. Even though they work in similar ways, ...

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 ...

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 ...

Creating a list of duplicate values that’s separate from the data source is easier than ever thanks to Microsoft Excel’s FILTER() function. There are a number of ways to highlight duplicate values.

Office expert Susan Harkins teaches you two ways to highlight the lowest and highest values in an Excel row or column. Finding the lowest or highest value in an Excel row or column is simple using the ...

Tonight’s tip of the night explains how you can use an array formula in Excel to confirm that values on a single row for multiple columns are the same, but discount any instances where a column has a ...