File Source for Autoloader.php

<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2011 PHPExcel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category PHPExcel
* @package PHPExcel
* @copyright Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 1.7.6, 2011-02-27
*/
PHPExcel_Autoloader::Register();
PHPExcel_Shared_ZipStreamWrapper::register();
// check mbstring.func_overload
if (ini_get('mbstring.func_overload') & 2) {
throw new Exception('Multibyte function overloading in PHP must be disabled for string functions (2).');
}
PHPExcel_Shared_String::buildCharacterSets();
class PHPExcel_Autoloader
{
public static function Register() {
return spl_autoload_register(array('PHPExcel_Autoloader', 'Load'));
} // function Register()
public static function Load($pObjectName){
if ((class_exists($pObjectName)) || (strpos($pObjectName, 'PHPExcel') === False)) {
return false;
}
$pObjectFilePath = PHPEXCEL_ROOT.
str_replace('_',DIRECTORY_SEPARATOR,$pObjectName).
'.php';
if ((file_exists($pObjectFilePath) === false) || (is_readable($pObjectFilePath) === false)) {
return false;
}
require($pObjectFilePath);
} // function Load()
}

Source for file Autoloader.php