Prevent duplicates before they happen by combining a simple function with data validation.

Learn how the new Excel Copilot function simplifies data cleanup, automates tasks, and boosts productivity for analysts and ...

Excel's data validation feature is more versatile than you might think. Learn how to use literal values, input values, list values, and even formulas to restrict input date values using data ...

How to Use Excel to Show Only Duplicate Values. Business issues such as incorrect transactions, data entry errors, technical glitches and poor system design may cause duplicate values in your data ...