Learn how to count the number of unique and distinct values in a column based on data in another column using array in Microsof Excel.

Microsoft Excel is the go-to if you want to calculate a lot of data all at once, but even outside of basic math, you can use the app to find specific info.

When counting unique values in Microsoft Excel, use UNIQUE() as a helper function and avoid more complicated expressions.

The easiest way to spot a unique value is to format it, and Microsoft Excel offers two ways to do so.