Use Excel data validation to prevent duplicate values in a column Your email has been sent Prevent duplicates before they happen by combining a simple function with data validation. Excel has built-in ...

Custom formulas let you dictate exactly what goes into cells.

If you are looking for an easy way to enhance your Excel data analysis and visualizations you might be interested in learning more about the Filter feature available within Microsoft Excel ...

You've built a perfect Excel table, but the moment you try to use its headers in a drop-down menu, everything breaks. Excel's Data Validation is notoriously picky with tables, but there's a clever ...