Click the Data tab and select Data Validation in the Data Tools group. A Data Validation dialog box will appear. Under Allow, click the drop-down arrow and select List from the drop-down list.

Susan Harkins shows you a quick method for removing validation rules for multiple ranges in Excel, at the same time.

Learn how to use a data validation control to allow users to select when to run multiple VBA procedures in Microsoft Excel.

The "Data Validation" dialog box opens. Use the "Settings" tab options in the dialog box to limit the type of data that can be entered.