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 ...

To view the Data Validation restrictions for a cell or a range of cells in Excel, select the cell or the range of cells, then go to Data > Data Validation. In the Data Validation window, select ...

How to embed a data validation control in Excel We’ll begin by creating a data validation control and populating it with the name of a few tasks. When applying this to your own work, you might ...