อยากสอบถามการใช้งาน Linq ผม select data ออกมาแล้วพอเอาลงในไฟล์ excel มันติดคอลั่มอื่นออกมาด้วย

        public void exportExcel()
        {
            try
            {
                List<MONote> listValue = new List<MONote>();
                listValue = Session["listMoNote"] as List<MONote>;
                listValue = listValue.Select(x => new MONote
                {
                    MONo = x.MONo,
                    CostCenterDesc = x.CostCenterDesc,
                    CostCenterCode = x.CostCenterCode,
                    MODate = x.MODate,
                    MaterialCode = x.MaterialCode,
                    MaterialName = x.MaterialName,
                    WeightUnit = x.WeightUnit,
                    QtyBUn = x.QtyBUn,
                    QtyKG = x.QtyKG,
                    QtyCar = x.QtyCar,
                    OperatingHr = x.OperatingHr,
                    ManPower = x.ManPower,
                    ManHr = x.ManHr
                }).ToList();
                ExcelPackage excel = new ExcelPackage();
                var workSheet = excel.Workbook.Worksheets.Add("Sheet1");
                workSheet.Cells[1, 1].LoadFromCollection(listValue, true);
                using (var memoryStream = new MemoryStream())
                {
                    //workSheet.Cells["A1"].Value = "MO / Mat Code";
                    ////workSheet.Cells["A2"].Value = "MONo";
                    //workSheet.Cells["B1"].Value = "Cost Center Description";
                    //workSheet.Cells["C1"].Value = "Cost Center";
                    //workSheet.Cells["D1"].Value = "Posting Date";
                    ////workSheet.Cells["A5"].Value = "Document Header Text";
                    //workSheet.Cells["E1"].Value = "Material";
                    //workSheet.Cells["F1"].Value = "Material Description";
                    //workSheet.Cells["G1"].Value = "Base Unit of Measure";
                    //workSheet.Cells["H1"].Value = "Sum of Quantity";
                    //workSheet.Cells["I1"].Value = "QTY(KG)";
                    //workSheet.Cells["J1"].Value = "QTY(Car)";
                    //workSheet.Cells["K1"].Value = "Operating Hour (Minute)";
                    //workSheet.Cells["L1"].Value = "Man Power";
                    //workSheet.Cells["M1"].Value = "Man Hour (Minute)";

                    workSheet.Column(4).Style.Numberformat.Format = "dd/MM/yyyy";
                    workSheet.Cells["A:AZ"].AutoFitColumns();
                    Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
                    Response.AddHeader("content-disposition", "attachment; filename=testExport.xlsx");
                    excel.SaveAs(memoryStream);
                    memoryStream.WriteTo(Response.OutputStream);
                    Response.Flush();
                    Response.End();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }