Initializes a new instance of the DefinedName class.
The name of the defined name item.
Indicates the defined name item works in which sheet. If omitted, the defined name item works in workbook
The value of the defined name item. The value could be a formula, a string constant or a cell range. For e.g. "Sum(1, 2, 3)", "test" or "sheet1!A1:B2"
Represents the Workbook Object Model Defined Name item definition.