Gets a Microsoft.Office.Interop.Excel.Range object that represents all the cells that have contained a value at any time.
Assembly: Microsoft.Office.Tools.Excel (in Microsoft.Office.Tools.Excel.dll)
A used range includes any cell that has ever been used. For example, if cell A1 contains a value, and then you delete the value, then cell A1 is considered used. In this case, theproperty will return a range that includes cell A1.