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). …

To find the cells on the worksheet that have data validation, on the Home tab, in the Editing group, click Find & Select, and then click Data Validation. After you have found the cells that have …

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 …

The following example shows how to create a data validation condition to ensure that data typed into a text box control matches a specific value — in this case, the word Hello.

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.

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 …

If you set up your list source as an Excel table, then all you need to do is add or remove items from the list, and Excel will automatically update any associated drop-downs for you.

You can use the Validation Rule property and the Validation Text property of a form control to validate data that is input to that control and to help users who input data that is not valid.

Note: This topic contains techniques that can help you correct formula errors. It's not an exhaustive list of methods for correcting every possible formula error. For help on specific …

Check boxes are a versatile feature in Excel, useful for making interactive lists and forms. In this article, we'll cover how to add, remove, and toggle them. Insert check boxes Select the range …