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 …

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 …

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). …

List of controls that support data validation The following table lists the Microsoft Office InfoPath 2007 controls that support data validation and whether they are available for browser …

In the Multiple Selection List Box Properties dialog box, you can type the entries yourself or configure the multiple-selection list box to retrieve entries from a database or other data source.

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.

For example: sheet2!$D$12 to go to a cell, and sheet3!$C$12:$F$21 to go to range. You can enter multiple named ranges or cell references in the Reference box. Separating each with a …

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.