Excel's data validation feature is more versatile than you might think. Learn how to use literal values, input values, list values, and even formulas to restrict input date values using data ...

Learn how to create a drop-down list using Data Validation in Excel. Data Validation limits the type of data that can be entered into a cell.

We can illustrate this technique by adding such a validation data control to the Membership Number column as follows: Select all existing data cells in the column in question.