Using PHPEXCEL to export a MYSQL table to EXCEL, the first row of the table is always missing

Question

As mentioned, have any friends encountered similar problems?

// Instantiate a new PHPExcel object
$objPHPExcel = new PHPExcel(); 
// Set the active Excel worksheet to sheet 0
$objPHPExcel->setActiveSheetIndex(0); 
// Initialise the Excel row number

$objPHPExcel->getActiveSheet()->setCellValue("A1","下单日");
$objPHPExcel->getActiveSheet()->setCellValue("B1","销售区域");
$objPHPExcel->getActiveSheet()->setCellValue("C1","销售组");
$objPHPExcel->getActiveSheet()->setCellValue("D1","销售姓名");
$objPHPExcel->getActiveSheet()->setCellValue("E1","项目号");
$objPHPExcel->getActiveSheet()->setCellValue("F1","客户");
$objPHPExcel->getActiveSheet()->setCellValue("G1","订单号");
$objPHPExcel->getActiveSheet()->setCellValue("H1","订单行次");
$objPHPExcel->getActiveSheet()->setCellValue("I1","物料号");
$objPHPExcel->getActiveSheet()->setCellValue("J1","物料描述（英文）");
$objPHPExcel->getActiveSheet()->setCellValue("K1","销售单位");
$objPHPExcel->getActiveSheet()->setCellValue("L1","订单总数量");
$objPHPExcel->getActiveSheet()->setCellValue("M1","未发货数量");
$objPHPExcel->getActiveSheet()->setCellValue("N1","已发货数量");
$objPHPExcel->getActiveSheet()->setCellValue("O1","确认库存数量");
$objPHPExcel->getActiveSheet()->setCellValue("P1","要求出库日");
$objPHPExcel->getActiveSheet()->setCellValue("Q1","预计出库日");
$objPHPExcel->getActiveSheet()->setCellValue("R1","发货仓库");
$objPHPExcel->getActiveSheet()->setCellValue("S1","发货冻结");
$objPHPExcel->getActiveSheet()->setCellValue("T1","发货冻结");
$objPHPExcel->getActiveSheet()->setCellValue("U1","发货单号");
$objPHPExcel->getActiveSheet()->setCellValue("V1","运输条件");
$objPHPExcel->getActiveSheet()->setCellValue("W1","订单状态");



$row11Count = 2; 
// Iterate through each result from the SQL query in turn
// We fetch each database result row into $row in turn
while($row11 = mysqli_fetch_array($result11)){ 
    // Set cell An to the "name" column from the database (assuming you have a column called name)
    //    where n is the Excel row number (ie cell A1 in the first row)
    $objPHPExcel->getActiveSheet()->SetCellValue('A'.$row11Count, $row11['Created on 下单日']); 
    // Set cell Bn to the "age" column from the database (assuming you have a column called age)
    //    where n is the Excel row number (ie cell A1 in the first row)
  $objPHPExcel->getActiveSheet()->SetCellValue('B'.$row11Count, $row11['SalesOffice']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('C'.$row11Count, $row11['SalesGroup']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('D'.$row11Count, $row11['Sales group descript 销售姓名']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('E'.$row11Count, $row11['WBS']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('F'.$row11Count, $row11['Customer name 客户名']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('G'.$row11Count, $row11['Order No. 订单号']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('H'.$row11Count, $row11['Line 订单序号']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('I'.$row11Count, $row11['Material 物料号']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('J'.$row11Count, $row11['Item Description 物料描述']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('K'.$row11Count, $row11['Unt 销售单位']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('L'.$row11Count, $row11['Ordered Qty 订单数量']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('M'.$row11Count, $row11['Opn.Qty.Dlv 未发数量']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('N'.$row11Count, $row11['Deliv. Qty. 已发数量']); 
  $objPHPExcel->getActiveSheet()->SetCellValue('O'.$row11Count, $row11['Conf Stock Qty 确认库存数量']); 
 $objPHPExcel->getActiveSheet()->SetCellValue('P'.$row11Count, $row11['Req.Date 要求出库日']);
  $objPHPExcel->getActiveSheet()->SetCellValue('Q'.$row11Count, $row11['Conf.dat(ETD) IL 预计出库日']);
   $objPHPExcel->getActiveSheet()->SetCellValue('R'.$row11Count, $row11['SupPlnt 发货仓库']);
    $objPHPExcel->getActiveSheet()->SetCellValue('S'.$row11Count, $row11['Delivery Block 发货冻结']);
     $objPHPExcel->getActiveSheet()->SetCellValue('T'.$row11Count, $row11['Dlv No 发货单号']);
 $objPHPExcel->getActiveSheet()->SetCellValue('U'.$row11Count, $row11['Shipping condition']);
  $objPHPExcel->getActiveSheet()->SetCellValue('V'.$row11Count, $row11['Shipping point']);
   $objPHPExcel->getActiveSheet()->SetCellValue('W'.$row11Count, $row11['Order status 订单状态']);

    // Increment the Excel row counter
    $row11Count++; 
} 

// Instantiate a Writer to create an OfficeOpenXML Excel .xlsx file
$objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel); 
// Write the Excel file to filename some_excel_file.xlsx in the current directory
$objWriter->save('OP.xlsx'); 



echo "<a href='./OP.xlsx' download='OP.xlsx'>另存为Excel</a>";

mysqli_close($link);  //关闭连接