title: PHPExcel Writer create blank file
body: <p>i try to create new excel file using phpexcel writer</p>
  
  <pre><code>&lt;?php
  
       set_include_path(get_include_path() . PATH_SEPARATOR . 'Classes/');
       include 'Classes/PHPExcel/IOFactory.php';
       include 'Classes/PHPExcel/Writer/Excel2007.php';     
       $inputFileName ='mak.xlsx';
  
      try 
      {
           $inputFileType = PHPExcel_IOFactory::identify($inputFileName);
           $objReader = PHPExcel_IOFactory::createReader($inputFileType);
           $objPHPExcel = $objReader -&gt; load($inputFileName);
           $objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);
           $objWriter-&gt;save('MyExcel.xlsx');            
      }
      catch(Exception $e) 
      {
          die('Error loading file "'.pathinfo($inputFileName,PATHINFO_BASENAME).'": '.$e-&gt;getMessage());
      }
  
  ?&gt;
  </code></pre>
  
  <p>i first load exiting excel file then pass the file data into  <code>PHPExcel_Writer_Excel2007($objPHPExcel)</code>. new file is create as a blank file</p>