Excel's spill range is a product of using dynamic array functions. Learn how the spill range fulfills these functions.

Functions are the driving force of any Microsoft Excel spreadsheet, generating a single value or an array of results based on ...

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

Check each column individually, and put a 1 or a 0 in a cell below each column. Then test that row of values for a 1. Not pretty, but functional.