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 ...

Data validation is a feature that allows you to restrict the type, range, or format of the data that can be entered in a cell or a range of cells. For example, you can use data validation to ...

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 ...

data validation, searching, and filtering. Understanding how to work with strings is an essential skill for anyone who uses Excel for data analysis and management. By knowing how to use strings, you ...