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 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.

Add a list box to your Excel worksheet from which users can choose a value. Make data entry easier by letting users choose a value from a combo box. A combo box combines a text box …

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 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 …

The following table lists the Microsoft Office InfoPath 2007 controls that support data validation and whether they are available for browser-compatible form templates.

You can quickly total data in an Excel table by enabling the Total Row option, and then use one of several functions that are provided in a drop-down list for each table column.

Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.

To make managing and analyzing a group of related data easier, you can turn a range of cells into an Excel table (previously known as an Excel list).

Learn how to add and edit single and multiple items, as well as delete items in SharePoint lists.