title: edit uploaded XLSX file values with PHPExcel
body: <p>is there possible to edit uploaded xlsx file with PHPExcel? I can read uploaded file using this function:</p>
  
  <pre><code>&lt;?php
  require_once('Classes/PHPExcel.php');
  $objReader = PHPExcel_IOFactory::createReader('Excel2007');
  $objReader-&gt;setReadDataOnly(true);
  $objPHPExcel = $objReader-&gt;load("Ataskaita2.xlsx");
  $objWorksheet = $objPHPExcel-&gt;setActiveSheetIndex(0);
  echo '&lt;table border=1&gt;' . "\n";
  foreach ($objWorksheet-&gt;getRowIterator() as $row) {
    echo '&lt;tr&gt;' . "\n";
    $cellIterator = $row-&gt;getCellIterator();
    $cellIterator-&gt;setIterateOnlyExistingCells(false); 
    foreach ($cellIterator as $cell) {
      echo '&lt;td&gt;' . $cell-&gt;getValue() . '&lt;/td&gt;' . "\n";
    }
    echo '&lt;/tr&gt;' . "\n";
  }
  echo '&lt;/table&gt;' . "\n";
  
  ?&gt;
  </code></pre>
  
  <p>But also I need to edit these cells is there a way to display these cells in a text fields and save it back after editing? Thank you for advices!</p>