C#: Добавить на текущий лист заголовок

string[] Header = { "Sno", "Product Code", "Product Name", "Quanity", "Price", "Total" };
Excel.Worksheet sht = Globals.ThisAddIn.Application.ActiveSheet as Excel.Worksheet;
Excel.Range myHeader = sht.get_Range("A1", "F1");
myHeader.Value2 = Header;
myHeader.Columns.AutoFit();