title: PHPExcel Allowed memory size
body: <p>How to fix this error in PHPExcel CodeIgniter?</p>
  
  <p>Fatal error: </p>
  
  <blockquote>
    <p>Allowed memory size of 134217728 bytes exhausted (tried to allocate
    131072 bytes) in
    /sites/apps/seller/www/application/libraries/Excel/PHPExcel/CachedObjectStorage/CacheBase.php
    on line 173</p>
  </blockquote>