Use data validation rules to control the type of data or the values that users enter into a cell. One example of validation is a drop-down list (also called a drop-down box or drop-down menu). Watch more in this video.

Add data validation. Click the control that you want to add data validation to. On the Format menu, click Data Validation. In the Data Validation dialog box, click Add. Under If this condition is true, add a condition. Example

You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

You can use data validation to restrict the type of data or values that users enter into cells. This is an advanced topic on data validation. For an introduction to data validation, and how to validate a cell or a range, see Add data validation to a cell or a range.

You can find cells in a workbook that contain data validation by using the Go To Special dialog box. On the Edit menu, point to Find, and then click Go To. Click Special. Select Data Validation. To find all cells with data validation, select All, and then click OK.

Go to Data > Data Validation. On the Settings tab, click in the Source box, and then on the worksheet that has the entries for your drop-down list, Select cell contents in Excel containing those entries. You'll see the list range in the Source box change as you select.

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In this scenario, you can add a date picker either by dragging a date picker field from the Data Source task pane onto the form template or by inserting the date picker by using the Controls task pane, as described in the following procedure:

To remove a drop-down list, click the cell with the list, then click Data > Data Validation, and then on the Settings tab, click Clear All, then OK. A drop-down list is also known as a drop-down box or drop-down menu.