'DeclarationReadOnly Property CellCount As System.Long
'UsageDim instance As IRange Dim value As System.Long value = instance.CellCount
System.long CellCount {get;}
read-only property CellCount: System.Int64;
function get CellCount : System.long__property System.long get_CellCount();property System.int64 CellCount {
System.int64 get();
}long numberOfCells = worksheet.Cells["A1:XFD1048576"].CellCount; // 17,179,869,184 cells
Dim numberOfCells As Long = worksheet.Cells("A1:XFD1048576").CellCount ' 17179869184 cells
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