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diff --git a/admin/survey/excel/PHPExcel.php b/admin/survey/excel/PHPExcel.php
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@@ -1,823 +0,0 @@
-<?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 root directory */

-if (!defined('PHPEXCEL_ROOT')) {

-	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/');

-	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');

-}

-

-

-/**

- * PHPExcel

- *

- * @category   PHPExcel

- * @package    PHPExcel

- * @copyright  Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)

- */

-class PHPExcel

-{

-	/**

-	 * Document properties

-	 *

-	 * @var PHPExcel_DocumentProperties

-	 */

-	private $_properties;

-

-	/**

-	 * Document security

-	 *

-	 * @var PHPExcel_DocumentSecurity

-	 */

-	private $_security;

-

-	/**

-	 * Collection of Worksheet objects

-	 *

-	 * @var PHPExcel_Worksheet[]

-	 */

-	private $_workSheetCollection = array();

-

-	/**

-	 * Active sheet index

-	 *

-	 * @var int

-	 */

-	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();

-

-	/**

-	 * Create a new PHPExcel with one Worksheet

-	 */

-	public function __construct()

-	{

-		// Initialise worksheet collection and add one worksheet

-		$this->_workSheetCollection = array();

-		$this->_workSheetCollection[] = new PHPExcel_Worksheet($this);

-		$this->_activeSheetIndex = 0;

-

-		// Create document properties

-		$this->_properties = new PHPExcel_DocumentProperties();

-

-		// Create document security

-		$this->_security = new PHPExcel_DocumentSecurity();

-

-		// Set named ranges

-		$this->_namedRanges = array();

-

-		// Create the cellXf supervisor

-		$this->_cellXfSupervisor = new PHPExcel_Style(true);

-		$this->_cellXfSupervisor->bindParent($this);

-

-		// Create the default style

-		$this->addCellXf(new PHPExcel_Style);

-		$this->addCellStyleXf(new PHPExcel_Style);

-	}

-

-

-	/**

-	 * Disconnect all worksheets from this PHPExcel workbook object,

-	 *    typically so that the PHPExcel object can be unset

-	 *

-	 */

-	public function disconnectWorksheets() {

-		foreach($this->_workSheetCollection as $k => &$worksheet) {

-			$worksheet->disconnectCells();

-			$this->_workSheetCollection[$k] = null;

-		}

-		unset($worksheet);

-		$this->_workSheetCollection = array();

-	}

-

-	/**

-	 * Get properties

-	 *

-	 * @return PHPExcel_DocumentProperties

-	 */

-	public function getProperties()

-	{

-		return $this->_properties;

-	}

-

-	/**

-	 * Set properties

-	 *

-	 * @param PHPExcel_DocumentProperties	$pValue

-	 */

-	public function setProperties(PHPExcel_DocumentProperties $pValue)

-	{

-		$this->_properties = $pValue;

-	}

-

-	/**

-	 * Get security

-	 *

-	 * @return PHPExcel_DocumentSecurity

-	 */

-	public function getSecurity()

-	{

-		return $this->_security;

-	}

-

-	/**

-	 * Set security

-	 *

-	 * @param PHPExcel_DocumentSecurity	$pValue

-	 */

-	public function setSecurity(PHPExcel_DocumentSecurity $pValue)

-	{

-		$this->_security = $pValue;

-	}

-

-	/**

-	 * Get active sheet

-	 *

-	 * @return PHPExcel_Worksheet

-	 */

-	public function getActiveSheet()

-	{

-		return $this->_workSheetCollection[$this->_activeSheetIndex];

-	}

-

-    /**

-     * Create sheet and add it to this workbook

-     *

-	 * @param int|null $iSheetIndex Index where sheet should go (0,1,..., or null for last)

-     * @return PHPExcel_Worksheet

-     * @throws Exception

-     */

-    public function createSheet($iSheetIndex = NULL)

-    {

-        $newSheet = new PHPExcel_Worksheet($this);

-        $this->addSheet($newSheet, $iSheetIndex);

-        return $newSheet;

-    }

-

-    /**

-     * Chech if a sheet with a specified name already exists

-     *

-     * @param string $pSheetName  Name of the worksheet to check

-     * @return boolean

-     */

-    public function sheetNameExists($pSheetName)

-    {

-		return ($this->getSheetByName($pSheetName) !== NULL);

-    }

-

-    /**

-     * Add sheet

-     *

-     * @param PHPExcel_Worksheet $pSheet

-	 * @param int|null $iSheetIndex Index where sheet should go (0,1,..., or null for last)

-     * @return PHPExcel_Worksheet

-     * @throws Exception

-     */

-    public function addSheet(PHPExcel_Worksheet $pSheet, $iSheetIndex = NULL)

-    {

-		if ($this->sheetNameExists($pSheet->getTitle())) {

-			throw new Exception("Workbook already contains a worksheet named '{$pSheet->getTitle()}'. Rename this worksheet first.");

-		}

-

-        if($iSheetIndex === NULL) {

-            if ($this->_activeSheetIndex < 0) {

-            	$this->_activeSheetIndex = 0;

-            }

-            $this->_workSheetCollection[] = $pSheet;

-        } else {

-            // Insert the sheet at the requested index

-            array_splice(

-                $this->_workSheetCollection,

-                $iSheetIndex,

-                0,

-                array($pSheet)

-                );

-

-			// Adjust active sheet index if necessary

-			if ($this->_activeSheetIndex >= $iSheetIndex) {

-				++$this->_activeSheetIndex;

-			}

-        }

-		return $pSheet;

-    }

-

-	/**

-	 * Remove sheet by index

-	 *

-	 * @param int $pIndex Active sheet index

-	 * @throws Exception

-	 */

-	public function removeSheetByIndex($pIndex = 0)

-	{

-		if ($pIndex > count($this->_workSheetCollection) - 1) {

-			throw new Exception("Sheet index is out of bounds.");

-		} else {

-			array_splice($this->_workSheetCollection, $pIndex, 1);

-		}

-		// Adjust active sheet index if necessary

-		if (($this->_activeSheetIndex >= $pIndex) &&

-			($pIndex > count($this->_workSheetCollection) - 1)) {

-			--$this->_activeSheetIndex;

-		}

-

-	}

-

-	/**

-	 * Get sheet by index

-	 *

-	 * @param int $pIndex Sheet index

-	 * @return PHPExcel_Worksheet

-	 * @throws Exception

-	 */

-	public function getSheet($pIndex = 0)

-	{

-		if ($pIndex > count($this->_workSheetCollection) - 1) {

-			throw new Exception("Sheet index is out of bounds.");

-		} else {

-			return $this->_workSheetCollection[$pIndex];

-		}

-	}

-

-	/**

-	 * Get all sheets

-	 *

-	 * @return PHPExcel_Worksheet[]

-	 */

-	public function getAllSheets()

-	{

-		return $this->_workSheetCollection;

-	}

-

-	/**

-	 * Get sheet by name

-	 *

-	 * @param string $pName Sheet name

-	 * @return PHPExcel_Worksheet

-	 * @throws Exception

-	 */

-	public function getSheetByName($pName = '')

-	{

-		$worksheetCount = count($this->_workSheetCollection);

-		for ($i = 0; $i < $worksheetCount; ++$i) {

-			if ($this->_workSheetCollection[$i]->getTitle() == $pName) {

-				return $this->_workSheetCollection[$i];

-			}

-		}

-

-		return null;

-	}

-

-	/**

-	 * Get index for sheet

-	 *

-	 * @param PHPExcel_Worksheet $pSheet

-	 * @return Sheet index

-	 * @throws Exception

-	 */

-	public function getIndex(PHPExcel_Worksheet $pSheet)

-	{

-		foreach ($this->_workSheetCollection as $key => $value) {

-			if ($value->getHashCode() == $pSheet->getHashCode()) {

-				return $key;

-			}

-		}

-	}

-

-    /**

-	 * Set index for sheet by sheet name.

-	 *

-	 * @param string $sheetName Sheet name to modify index for

-	 * @param int $newIndex New index for the sheet

-	 * @return New sheet index

-	 * @throws Exception

-	 */

-    public function setIndexByName($sheetName, $newIndex)

-    {

-        $oldIndex = $this->getIndex($this->getSheetByName($sheetName));

-        $pSheet = array_splice(

-            $this->_workSheetCollection,

-            $oldIndex,

-            1

-            );

-        array_splice(

-            $this->_workSheetCollection,

-            $newIndex,

-            0,

-            $pSheet

-            );

-        return $newIndex;

-    }

-

-	/**

-	 * Get sheet count

-	 *

-	 * @return int

-	 */

-	public function getSheetCount()

-	{

-		return count($this->_workSheetCollection);

-	}

-

-	/**

-	 * Get active sheet index

-	 *

-	 * @return int Active sheet index

-	 */

-	public function getActiveSheetIndex()

-	{

-		return $this->_activeSheetIndex;

-	}

-

-	/**

-	 * Set active sheet index

-	 *

-	 * @param int $pIndex Active sheet index

-	 * @throws Exception

-	 * @return PHPExcel_Worksheet

-	 */

-	public function setActiveSheetIndex($pIndex = 0)

-	{

-		if ($pIndex > count($this->_workSheetCollection) - 1) {

-			throw new Exception("Active sheet index is out of bounds.");

-		} else {

-			$this->_activeSheetIndex = $pIndex;

-		}

-		return $this->getActiveSheet();

-	}

-

-	/**

-	 * Set active sheet index by name

-	 *

-	 * @param string $pValue Sheet title

-	 * @return PHPExcel_Worksheet

-	 * @throws Exception

-	 */

-	public function setActiveSheetIndexByName($pValue = '')

-	{

-		if (($worksheet = $this->getSheetByName($pValue)) instanceof PHPExcel_Worksheet) {

-			$this->setActiveSheetIndex($this->getIndex($worksheet));

-			return $worksheet;

-		}

-

-		throw new Exception('Workbook does not contain sheet:' . $pValue);

-	}

-

-	/**

-	 * Get sheet names

-	 *

-	 * @return string[]

-	 */

-	public function getSheetNames()

-	{

-		$returnValue = array();

-		$worksheetCount = $this->getSheetCount();

-		for ($i = 0; $i < $worksheetCount; ++$i) {

-			$returnValue[] = $this->getSheet($i)->getTitle();

-		}

-

-		return $returnValue;

-	}

-

-	/**

-	 * Add external sheet

-	 *

-	 * @param PHPExcel_Worksheet $pSheet External sheet to add

-	 * @param int|null $iSheetIndex Index where sheet should go (0,1,..., or null for last)

-	 * @throws Exception

-	 * @return PHPExcel_Worksheet

-	 */

-	public function addExternalSheet(PHPExcel_Worksheet $pSheet, $iSheetIndex = null) {

-		if ($this->sheetNameExists($pSheet->getTitle())) {

-			throw new Exception("Workbook already contains a worksheet named '{$pSheet->getTitle()}'. Rename the external sheet first.");

-		}

-

-		// count how many cellXfs there are in this workbook currently, we will need this below

-		$countCellXfs = count($this->_cellXfCollection);

-

-		// copy all the shared cellXfs from the external workbook and append them to the current

-		foreach ($pSheet->getParent()->getCellXfCollection() as $cellXf) {

-			$this->addCellXf(clone $cellXf);

-		}

-

-		// move sheet to this workbook

-		$pSheet->rebindParent($this);

-

-		// update the cellXfs

-		foreach ($pSheet->getCellCollection(false) as $cellID) {

-			$cell = $pSheet->getCell($cellID);

-			$cell->setXfIndex( $cell->getXfIndex() + $countCellXfs );

-		}

-

-		return $this->addSheet($pSheet, $iSheetIndex);

-	}

-

-	/**

-	 * Get named ranges

-	 *

-	 * @return PHPExcel_NamedRange[]

-	 */

-	public function getNamedRanges() {

-		return $this->_namedRanges;

-	}

-

-	/**

-	 * Add named range

-	 *

-	 * @param PHPExcel_NamedRange $namedRange

-	 * @return PHPExcel

-	 */

-	public function addNamedRange(PHPExcel_NamedRange $namedRange) {

-		if ($namedRange->getScope() == null) {

-			// global scope

-			$this->_namedRanges[$namedRange->getName()] = $namedRange;

-		} else {

-			// local scope

-			$this->_namedRanges[$namedRange->getScope()->getTitle().'!'.$namedRange->getName()] = $namedRange;

-		}

-		return true;

-	}

-

-	/**

-	 * Get named range

-	 *

-	 * @param string $namedRange

-	 * @param PHPExcel_Worksheet|null $pSheet Scope. Use null for global scope

-	 * @return PHPExcel_NamedRange|null

-	 */

-	public function getNamedRange($namedRange, PHPExcel_Worksheet $pSheet = null) {

-		$returnValue = null;

-

-		if ($namedRange != '' && ($namedRange !== NULL)) {

-			// first look for global defined name

-			if (isset($this->_namedRanges[$namedRange])) {

-				$returnValue = $this->_namedRanges[$namedRange];

-			}

-

-			// then look for local defined name (has priority over global defined name if both names exist)

-			if (($pSheet !== NULL) && isset($this->_namedRanges[$pSheet->getTitle() . '!' . $namedRange])) {

-				$returnValue = $this->_namedRanges[$pSheet->getTitle() . '!' . $namedRange];

-			}

-		}

-

-		return $returnValue;

-	}

-

-	/**

-	 * Remove named range

-	 *

-	 * @param  string  $namedRange

-	 * @param  PHPExcel_Worksheet|null  $pSheet  Scope: use null for global scope.

-	 * @return PHPExcel

-	 */

-	public function removeNamedRange($namedRange, PHPExcel_Worksheet $pSheet = null) {

-		if ($pSheet === NULL) {

-			if (isset($this->_namedRanges[$namedRange])) {

-				unset($this->_namedRanges[$namedRange]);

-			}

-		} else {

-			if (isset($this->_namedRanges[$pSheet->getTitle() . '!' . $namedRange])) {

-				unset($this->_namedRanges[$pSheet->getTitle() . '!' . $namedRange]);

-			}

-		}

-		return $this;

-	}

-

-	/**

-	 * Get worksheet iterator

-	 *

-	 * @return PHPExcel_WorksheetIterator

-	 */

-	public function getWorksheetIterator() {

-		return new PHPExcel_WorksheetIterator($this);

-	}

-

-	/**

-	 * Copy workbook (!= clone!)

-	 *

-	 * @return PHPExcel

-	 */

-	public function copy() {

-		$copied = clone $this;

-

-		$worksheetCount = count($this->_workSheetCollection);

-		for ($i = 0; $i < $worksheetCount; ++$i) {

-			$this->_workSheetCollection[$i] = $this->_workSheetCollection[$i]->copy();

-			$this->_workSheetCollection[$i]->rebindParent($this);

-		}

-

-		return $copied;

-	}

-

-	/**

-	 * Implement PHP __clone to create a deep clone, not just a shallow copy.

-	 */

-	public function __clone() {

-		foreach($this as $key => $val) {

-			if (is_object($val) || (is_array($val))) {

-				$this->{$key} = unserialize(serialize($val));

-			}

-		}

-	}

-

-	/**

-	 * Get the workbook collection of cellXfs

-	 *

-	 * @return PHPExcel_Style[]

-	 */

-	public function getCellXfCollection()

-	{

-		return $this->_cellXfCollection;

-	}

-

-	/**

-	 * Get cellXf by index

-	 *

-	 * @param int $pIndex

-	 * @return PHPExcel_Style

-	 */

-	public function getCellXfByIndex($pIndex = 0)

-	{

-		return $this->_cellXfCollection[$pIndex];

-	}

-

-	/**

-	 * Get cellXf by hash code

-	 *

-	 * @param string $pValue

-	 * @return PHPExcel_Style|false

-	 */

-	public function getCellXfByHashCode($pValue = '')

-	{

-		foreach ($this->_cellXfCollection as $cellXf) {

-			if ($cellXf->getHashCode() == $pValue) {

-				return $cellXf;

-			}

-		}

-		return false;

-	}

-

-	/**

-	 * Get default style

-	 *

-	 * @return PHPExcel_Style

-	 * @throws Exception

-	 */

-	public function getDefaultStyle()

-	{

-		if (isset($this->_cellXfCollection[0])) {

-			return $this->_cellXfCollection[0];

-		}

-		throw new Exception('No default style found for this workbook');

-	}

-

-	/**

-	 * Add a cellXf to the workbook

-	 *

-	 * @param PHPExcel_Style $style

-	 */

-	public function addCellXf(PHPExcel_Style $style)

-	{

-		$this->_cellXfCollection[] = $style;

-		$style->setIndex(count($this->_cellXfCollection) - 1);

-	}

-

-	/**

-	 * Remove cellXf by index. It is ensured that all cells get their xf index updated.

-	 *

-	 * @param int $pIndex Index to cellXf

-	 * @throws Exception

-	 */

-	public function removeCellXfByIndex($pIndex = 0)

-	{

-		if ($pIndex > count($this->_cellXfCollection) - 1) {

-			throw new Exception("CellXf index is out of bounds.");

-		} else {

-			// first remove the cellXf

-			array_splice($this->_cellXfCollection, $pIndex, 1);

-

-			// then update cellXf indexes for cells

-			foreach ($this->_workSheetCollection as $worksheet) {

-				foreach ($worksheet->getCellCollection(false) as $cellID) {

-					$cell = $worksheet->getCell($cellID);

-					$xfIndex = $cell->getXfIndex();

-					if ($xfIndex > $pIndex ) {

-						// decrease xf index by 1

-						$cell->setXfIndex($xfIndex - 1);

-					} else if ($xfIndex == $pIndex) {

-						// set to default xf index 0

-						$cell->setXfIndex(0);

-					}

-				}

-			}

-		}

-	}

-

-	/**

-	 * Get the cellXf supervisor

-	 *

-	 * @return PHPExcel_Style

-	 */

-	public function getCellXfSupervisor()

-	{

-		return $this->_cellXfSupervisor;

-	}

-

-	/**

-	 * Get the workbook collection of cellStyleXfs

-	 *

-	 * @return PHPExcel_Style[]

-	 */

-	public function getCellStyleXfCollection()

-	{

-		return $this->_cellStyleXfCollection;

-	}

-

-	/**

-	 * Get cellStyleXf by index

-	 *

-	 * @param int $pIndex

-	 * @return PHPExcel_Style

-	 */

-	public function getCellStyleXfByIndex($pIndex = 0)

-	{

-		return $this->_cellStyleXfCollection[$pIndex];

-	}

-

-	/**

-	 * Get cellStyleXf by hash code

-	 *

-	 * @param string $pValue

-	 * @return PHPExcel_Style|false

-	 */

-	public function getCellStyleXfByHashCode($pValue = '')

-	{

-		foreach ($this->_cellXfStyleCollection as $cellStyleXf) {

-			if ($cellStyleXf->getHashCode() == $pValue) {

-				return $cellStyleXf;

-			}

-		}

-		return false;

-	}

-

-	/**

-	 * Add a cellStyleXf to the workbook

-	 *

-	 * @param PHPExcel_Style $pStyle

-	 */

-	public function addCellStyleXf(PHPExcel_Style $pStyle)

-	{

-		$this->_cellStyleXfCollection[] = $pStyle;

-		$pStyle->setIndex(count($this->_cellStyleXfCollection) - 1);

-	}

-

-	/**

-	 * Remove cellStyleXf by index

-	 *

-	 * @param int $pIndex

-	 * @throws Exception

-	 */

-	public function removeCellStyleXfByIndex($pIndex = 0)

-	{

-		if ($pIndex > count($this->_cellStyleXfCollection) - 1) {

-			throw new Exception("CellStyleXf index is out of bounds.");

-		} else {

-			array_splice($this->_cellStyleXfCollection, $pIndex, 1);

-		}

-	}

-

-	/**

-	 * Eliminate all unneeded cellXf and afterwards update the xfIndex for all cells

-	 * and columns in the workbook

-	 */

-	public function garbageCollect()

-	{

-    	// how many references are there to each cellXf ?

-		$countReferencesCellXf = array();

-		foreach ($this->_cellXfCollection as $index => $cellXf) {

-			$countReferencesCellXf[$index] = 0;

-		}

-

-		foreach ($this->getWorksheetIterator() as $sheet) {

-

-			// from cells

-			foreach ($sheet->getCellCollection(false) as $cellID) {

-				$cell = $sheet->getCell($cellID);

-				++$countReferencesCellXf[$cell->getXfIndex()];

-			}

-

-			// from row dimensions

-			foreach ($sheet->getRowDimensions() as $rowDimension) {

-				if ($rowDimension->getXfIndex() !== null) {

-					++$countReferencesCellXf[$rowDimension->getXfIndex()];

-				}

-			}

-

-			// from column dimensions

-			foreach ($sheet->getColumnDimensions() as $columnDimension) {

-				++$countReferencesCellXf[$columnDimension->getXfIndex()];

-			}

-		}

-

-		// remove cellXfs without references and create mapping so we can update xfIndex

-		// for all cells and columns

-		$countNeededCellXfs = 0;

-		foreach ($this->_cellXfCollection as $index => $cellXf) {

-			if ($countReferencesCellXf[$index] > 0 || $index == 0) { // we must never remove the first cellXf

-				++$countNeededCellXfs;

-			} else {

-				unset($this->_cellXfCollection[$index]);

-			}

-			$map[$index] = $countNeededCellXfs - 1;

-		}

-		$this->_cellXfCollection = array_values($this->_cellXfCollection);

-

-		// update the index for all cellXfs

-		foreach ($this->_cellXfCollection as $i => $cellXf) {

-			$cellXf->setIndex($i);

-		}

-

-		// make sure there is always at least one cellXf (there should be)

-		if (empty($this->_cellXfCollection)) {

-			$this->_cellXfCollection[] = new PHPExcel_Style();

-		}

-

-		// update the xfIndex for all cells, row dimensions, column dimensions

-		foreach ($this->getWorksheetIterator() as $sheet) {

-

-			// for all cells

-			foreach ($sheet->getCellCollection(false) as $cellID) {

-				$cell = $sheet->getCell($cellID);

-				$cell->setXfIndex( $map[$cell->getXfIndex()] );

-			}

-

-			// for all row dimensions

-			foreach ($sheet->getRowDimensions() as $rowDimension) {

-				if ($rowDimension->getXfIndex() !== null) {

-					$rowDimension->setXfIndex( $map[$rowDimension->getXfIndex()] );

-				}

-			}

-

-			// for all column dimensions

-			foreach ($sheet->getColumnDimensions() as $columnDimension) {

-				$columnDimension->setXfIndex( $map[$columnDimension->getXfIndex()] );

-			}

-		}

-

-		// also do garbage collection for all the sheets

-		foreach ($this->getWorksheetIterator() as $sheet) {

-			$sheet->garbageCollect();

-		}

-	}

-

-}