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 ...

Follow the steps below to create a drop-down list using data validation in Excel. If you want to add a message pop up, you can click the Input Message tab and check the checkbox for “Show input ...

Data validation in Excel lets you restrict what can be entered into a cell, whether whole numbers, decimals, dates, or a certain number of characters. However, one of the most powerful capabilities of ...

How to force a consistent phone number format in Microsoft Excel Your email has been sent Combine an Excel custom format with data validation and remove the pressure ...