title: PHPExcel reading large CSV is failing
body: <p>I am attempting to import a csv using PHPExcel into my application so that I can load the data into a table.  When the file reaches 2 meg+ the code fails.</p>
  
  <p>I'm running Laravel on WAMP64.  The code that is failing is:</p>
  
  <pre><code>$objPHPExcel = PHPExcel_IOFactory::load(Input::file('file')-&gt;getRealPath());
  </code></pre>
  
  <p>The error message is:</p>
  
  <pre><code>ErrorException: file_get_contents(C:\wamp\www\imax\public): failed to open stream: Permission denied in     C:\wamp\www\imax\vendor\phpoffice\phpexcel\Classes\PHPExcel\Shared\OLERead.php:85
  </code></pre>
  
  <p>I know it's a size issue because the code completes properly when the file is 2048K.  I can add one character to the file pushing it to 2049K and it fails.  So it's not a permissions issue.</p>
  
  <p>The line that fails in OLERead.php is:</p>
  
  <pre><code>// Get the file identifier
  // Don't bother reading the whole file until we know it's a valid OLE file
  $this-&gt;data = file_get_contents($sFileName, FALSE, NULL, 0, 8);
  </code></pre>
  
  <p>Wampserver 3.0.6</p>
  
  <p>PHP 7.0.10</p>