A predefined name used to refer to an OLE object in Visual Basic. A class name consists of the name of the application used to create the OLE object, the object's type, and, optionally, the version number of the application. Examples of class names are Excel.Sheet, Excel.Worksheet, Word.Document, and MSGraph.Chart.5. To determine the class name of an OLE object, see the documentation for the application that created the object.