You can easily create a drop-down list in Excel to limit the values that can be entered in a column. Here's how to set one up.

An curved arrow pointing right. Data validation in Excel allows you to create drop-down menus right inside individual cells. You can also restrict the types of values entered into different cells ...

How to Make a Drop Down Box to Allow Multiple Selections in Excel. Microsoft Excel allows you to create a drop-down list that gives you the ability to choose values or items listed in one cell.