File Source for Settings.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_Settings
* @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 root directory */
if (!defined('PHPEXCEL_ROOT')) {
/**
* @ignore
*/
define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../');
require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}
class PHPExcel_Settings
{
/** constants */
const PCLZIP = 'PHPExcel_Shared_ZipArchive';
const ZIPARCHIVE = 'ZipArchive';
private static $_zipClass = self::ZIPARCHIVE;
/**
* Set the Zip Class to use (PCLZip or ZipArchive)
*
* @param string $zipClass PHPExcel_Settings::PCLZip or PHPExcel_Settings::ZipArchive
* @return boolean Success or failure
*/
public static function setZipClass($zipClass) {
if (($zipClass == self::PCLZIP) ||
($zipClass == self::ZIPARCHIVE)) {
self::$_zipClass = $zipClass;
return True;
}
return False;
} // function setZipClass()
/**
* Return the Zip Class to use (PCLZip or ZipArchive)
*
* @return string Zip Class to use - PHPExcel_Settings::PCLZip or PHPExcel_Settings::ZipArchive
*/
public static function getZipClass() {
return self::$_zipClass;
} // function getZipClass()
public static function getCacheStorageMethod() {
return PHPExcel_CachedObjectStorageFactory::$_cacheStorageMethod;
} // function getCacheStorageMethod()
public static function getCacheStorageClass() {
return PHPExcel_CachedObjectStorageFactory::$_cacheStorageClass;
} // function getCacheStorageClass()
public static function setCacheStorageMethod($method = PHPExcel_CachedObjectStorageFactory::cache_in_memory, $arguments = array()) {
return PHPExcel_CachedObjectStorageFactory::initialize($method,$arguments);
} // function setCacheStorageMethod()
public static function setLocale($locale){
return PHPExcel_Calculation::getInstance()->setLocale($locale);
} // function setLocale()
}

Source for file Settings.php