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 ...

Select all the relevant cells, and in the Data tab, click the main part of the split "Data Validation" button. Then, click ...

In this article we will show you how to display multiple columns in a validation list in Excel. We will show you a method that can then be applied to your data. To create a validation list with ...

Purchase orders are essential business documents between a buyer and seller that outline goods or services to be provided along with agreed prices and delivery terms. Microsoft Excel offers an ...