There’s no built-in duplicate rule for Excel’s Data Validation feature, but you can combine the feature with the COUNTIF() function to get the job done. To do so competently, you need to know ...

Data Validation is a feature in Excel that allows users to pick from a list of rules to limit the type of data that can be entered into a cell. Follow the steps below to create a drop-down list ...

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 furth. Chron Logo Hearst Newspapers Logo.

Excel’s data validation feature is underused because many users don’t realize how versatile it is, especially where dates are concerned. Dates seem to complicate things, but only in your head!

If you've ever wanted to leverage the power of Data Validation in Excel combined with the flexibility of Web Excel, now you can! In this post we walk through an example of how easy it is to collect ...