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). …

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.

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.

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 …

After you create a drop-down list, you might want to add more items or delete items. In this article, we'll show you how to do that depending on how the list was created.

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 …

Ensuring data integrity You can use the built-in data validation feature in Excel. For example, you may choose to allow only numbers or dates in a column of a table.

Cascading list boxes help users fill out forms faster and help ensure that users enter data correctly. This article describes how to create and populate cascading list boxes with data.

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.

After you create a drop-down list, you might want to add more items or delete items. In this article, we'll show you how to do that depending on how the list was created.