Visual Studio Tools for Office extends some objects in Microsoft Office Excel so that they expose events and act as a container for controls. These extended objects are called host items. This section describes the host items available for Excel documents.
Describes the extended functionality of Workbook host items, including the addition of events. It also describes how the workbook acts as a container for components that are shared by all worksheets in the workbook.
Describes the extended functionality of Worksheet host items, including the addition of events and data binding. It also describes how you can add Windows Forms controls and host controls to the worksheet.