PHPExcel Allowed memory size
<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>