This property actually returns the same instance of IRange as IWorksheet.Cells and is here as a convenience to Excel developers who are used to utilizing this property in the Excel Worksheet object.
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2