To create a drop-down list, select cell where you want it to be (in this case, cell I2), and in the Data tab on the ribbon, click "Data Validation" in the drop-down option with the same name.

When you work with Excel, you often need to ensure that the data entered into your spreadsheets is accurate and consistent. One effective way to achieve this is by using a drop-down list. In this ...

Microsoft Excel can save you time in lots of little ways, like adding a drop-down list to cells so that only pre-written text can be entered.

Inserting Drop-Down Lists with Data Validation Once you have created named ranges for your lists, the next step is to insert the drop-down lists using Excel’s data validation feature.