Data validation is the foundation of creating drop-down lists in Excel. By setting up data validation rules, you can create lists that automatically update as your data changes.

Changes to the source list will not automatically reflect in the drop-down list — it must be manually updated in the Data Validation box. Also, if the Ignore blank option is left unchecked, it ...

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.

Learn to create efficient, interconnected Excel drop-down lists using range functions and data validation techniques. Multi-level drop-down ...

Learn how to create a drop-down list in Excel without or with color using conditional formatting and data validation rules.

The data validation drop-down button in cell G1 in an Excel spreadsheet is selected to reveal the input options.

This illustrated walk-through (with a demo worksheet) shows how easy it is to create a multi-column search solution using validation lists and conditional formatting.

How to Make a Drop-Down List to Choose a Date in Excel. Microsoft Excel lets you create simple forms that your users can enter data.