ExcelApplication xla = new ExcelApplication();
          Workbook wb = xla.Create();
          Worksheet ws = wb.Worksheets[0];
          Cells cls = ws.Cells;
        

          Dim xla As New ExcelApplication()
          Dim wb As Workbook = xla.Create()
          Dim ws As Worksheet = wb.Worksheets(0)
          Dim cls As Cells = ws.Cells