Now, let’s insert the data validation control. Using the simple demonstration sheet shown in Figure A, click B2. Feel free to use one of your own files if you like or choose another cell.

Follow the steps below to create a drop-down list using data validation in Excel. If you want to add a message pop up, you can click the Input Message tab and check the checkbox for “Show input ...

Combine an Excel custom format with data validation and remove the pressure for input perfection from personnel by letting Excel do the work.