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diff --git a/admin/survey/excel/PHPExcel/Autoloader.php b/admin/survey/excel/PHPExcel/Autoloader.php
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+<?php
+/**
+ * PHPExcel
+ *
+ * Copyright (c) 2006 - 2012 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 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
+ * @version    1.7.8, 2012-10-12
+ */
+
+PHPExcel_Autoloader::Register();
+//	As we always try to run the autoloader before anything else, we can use it to do a few
+//		simple checks and initialisations
+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();
+
+
+/**
+ * PHPExcel_Autoloader
+ *
+ * @category	PHPExcel
+ * @package		PHPExcel
+ * @copyright	Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Autoloader
+{
+	/**
+	 * Register the Autoloader with SPL
+	 *
+	 */
+	public static function Register() {
+		if (function_exists('__autoload')) {
+			//	Register any existing autoloader function with SPL, so we don't get any clashes
+			spl_autoload_register('__autoload');
+		}
+		//	Register ourselves with SPL
+		return spl_autoload_register(array('PHPExcel_Autoloader', 'Load'));
+	}	//	function Register()
+
+
+	/**
+	 * Autoload a class identified by name
+	 *
+	 * @param	string	$pClassName		Name of the object to load
+	 */
+	public static function Load($pClassName){
+		if ((class_exists($pClassName,FALSE)) || (strpos($pClassName, 'PHPExcel') !== 0)) {
+			//	Either already loaded, or not a PHPExcel class request
+			return FALSE;
+		}
+
+		$pClassFilePath = PHPEXCEL_ROOT .
+						  str_replace('_',DIRECTORY_SEPARATOR,$pClassName) .
+						  '.php';
+
+		if ((file_exists($pClassFilePath) === false) || (is_readable($pClassFilePath) === false)) {
+			//	Can't load
+			return FALSE;
+		}
+
+		require($pClassFilePath);
+	}	//	function Load()
+
+}
+\ No newline at end of file