title: Phone Number Automatically Add When Export To Excel File
body: <p>I have <strong>+82-2-573-3585</strong> in my database but when I <strong>export .xls</strong> file using the following codes below the number add automatically so it result to <strong>-4078</strong>. How can I make the phone number in my excel file the same with my database phone number?</p>
  
  <pre><code>&lt;?php  
      $conn = new mysqli('localhost', 'root', '');  
      mysqli_select_db($conn, 'databasename');  
  
      $setSql = "SELECT contact_number FROM supplier";  
      $setRec = mysqli_query($conn, $setSql);  
  
      $columnHeader = 'SUPPLIERS'; 
      $columnHeader = "Mobile Number" . "\t";  
  
      $setData = '';  
  
      while ($rec = mysqli_fetch_row($setRec)) {  
          $rowData = '';  
          foreach ($rec as $value) {  
              $value = '"' . $value . '"' . "\t";  
              $rowData .= $value;  
          }  
          $setData .= trim($rowData) . "\n";  
      }  
  
  
      header("Content-type: application/octet-stream");  
      header("Content-Disposition: attachment; filename=Machine_Supplier.xls");  
      header("Pragma: no-cache");  
      header("Expires: 0");  
  
      echo ucwords($columnHeader) . "\n" . $setData . "\n";  
  ?&gt;  
  </code></pre>