当前路径：Classes/PHPExcel.php
<?php

/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {
    define('PHPEXCEL_ROOT', dirname(__FILE__) . '/');
    require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2015 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 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version    ##VERSION##, ##DATE##
 */
class PHPExcel
{
    /**
     * Unique ID
     *
     * @var string
     */
    private $uniqueID;

    /**
     * Document properties
     *
     * @var PHPExcel_DocumentProperties
     */
    private $properties;

    /**
     * Document security
     *
     * @var PHPExcel_DocumentSecurity
     */
    private $security;

    /**
     * Collection of Worksheet objects
     *
     * @var PHPExcel_Worksheet[]
     */
    private $workSheetCollection = array();

    /**
     * Calculation Engine
     *
     * @var PHPExcel_Calculation
     */
    private $calculationEngine;

    /**
     * Active sheet index
     *
     * @var integer
     */
    private $activeSheetIndex = 0;

    /**
     * Named ranges
     *
     * @var PHPExcel_NamedRange[]
     */
    private $namedRanges = array();

    /**
     * CellXf supervisor
     *
     * @var PHPExcel_Style
     */
    private $cellXfSupervisor;

    /**
     * CellXf collection
     *
     * @var PHPExcel_Style[]
     */
    private $cellXfCollection = array();

    /**
     * CellStyleXf collection
     *
     * @var PHPExcel_Style[]
     */
    private $cellStyleXfCollection = array();

    /**
    * hasMacros : this workbook have macros ?
    *
    * @var bool
    */
    private $hasMacros = false;

    /**
    * macrosCode : all macros code (the vbaProject.bin file, this include form, code,  etc.), null if no macro
    *
    * @var binary
    */
    private $macrosCode;
    /**
    * macrosCertificate : if macros are signed, contains vbaProjectSignature.bin file, null if not signed
    *
    * @var binary
    */
    private $macrosCertificate;

    /**
    * ribbonXMLData : null if workbook is'nt Excel 2007 or not contain a customized UI
    *
    * @var null|string
    */
    private $ribbonXMLData;

    /**
    * ribbonBinObjects : null if workbook is'nt Excel 2007 or not contain embedded objects (picture(s)) for Ribbon Elements
    * ignored if $ribbonXMLData is null
    *
    * @var null|array
    */
    private $ribbonBinObjects;

    /**
    * The workbook has macros ?
    *
    * @return boolean true if workbook has macros, false if not
    */
    public function hasMacros()
    {
        return $this->hasMacros;
    }

    /**
    * Define if a workbook has macros
    *
    * @param boolean $hasMacros true|false
    */
    public function setHasMacros($hasMacros = false)
    {
        $this->hasMacros = (bool) $hasMacros;
    }

    /**
    * Set the macros code
    *
    * @param string $MacrosCode string|null
    */
    public function setMacrosCode($MacrosCode = null)
    {
        $this->macrosCode=$MacrosCode;
        $this->setHasMacros(!is_null($MacrosCode));
    }

    /**
    * Return the macros code
    *
    * @return string|null
    */
    public function getMacrosCode()
    {
        return $this->macrosCode;
    }

    /**
    * Set the macros certificate
    *
    * @param string|null $Certificate
    */
    public function setMacrosCertificate($Certificate = null)
    {
        $this->macrosCertificate=$Certificate;
    }

    /**
    * Is the project signed ?
    *
    * @return boolean true|false
    */
    public function hasMacrosCertificate()
    {
        return !is_null($this->macrosCertificate);
    }

    /**
    * Return the macros certificate
    *
    * @return string|null
    */
    public function getMacrosCertificate()
    {
        return $this->macrosCertificate;
    }

    /**
    * Remove all macros, certificate from spreadsheet
    *
    */
    public function discardMacros()
    {
        $this->hasMacros=false;
        $this->macrosCode=null;
        $this->macrosCertificate=null;
    }

    /**
    * set ribbon XML data
    *
    */
    public function setRibbonXMLData($Target = null, $XMLData = null)
    {
        if (!is_null($Target) && !is_null($XMLData)) {
            $this->ribbonXMLData = array('target' => $Target, 'data' => $XMLData);
        } else {
            $this->ribbonXMLData = null;
        }
    }

    /**
    * retrieve ribbon XML Data
    *
    * return string|null|array
    */
    public function getRibbonXMLData($What = 'all') //we need some constants here...
    {
        $ReturnData = null;
        $What = strtolower($What);
        switch ($What){
            case 'all':
                $ReturnData = $this->ribbonXMLData;
                break;
            case 'target':
            case 'data':
                if (is_array($this->ribbonXMLData) && array_key_exists($What, $this->ribbonXMLData)) {
                    $ReturnData = $this->ribbonXMLData[$What];
                }
                break;
        }

        return $ReturnData;
    }

    /**
    * store binaries ribbon objects (pictures)
    *
    */
    public function setRibbonBinObjects($BinObjectsNames = null, $BinObjectsData = null)
    {
        if (!is_null($BinObjectsNames) && !is_null($BinObjectsData)) {
            $this->ribbonBinObjects = array('names' => $BinObjectsNames, 'data' => $BinObjectsData);
        } else {
            $this->ribbonBinObjects = null;
        }
    }
  ...