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 ...

When you update this spreadsheet with new or different data, you won’t have to re-create the validation rule, but you will need to click Circle Invalid Data again. This tool would be useful to bring ...

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.

Automated Data Entry in Excel. One way businesses can save time and money is using Excel spreadsheets as data tables in which to store customer information, inventory details or other important data.

The Data Validation feature in Excel 2013 offers a List option to confine selections in a cell to a preconfigured series of values. This selection can further influence the values in another list ...

How to base a data validation dropdown on an array in Excel Now we’re ready to create the data validation dropdown that will display the unique list in column H.