diff --git a/Examples/43mergeWorkbooks.php b/Examples/43mergeWorkbooks.php
new file mode 100644
index 00000000..465b60a3
--- /dev/null
+++ b/Examples/43mergeWorkbooks.php
@@ -0,0 +1,91 @@
+<?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##
+ */
+
+error_reporting(E_ALL);
+ini_set('display_errors', TRUE);
+ini_set('display_startup_errors', TRUE);
+
+define('EOL',(PHP_SAPI == 'cli') ? PHP_EOL : '<br />');
+
+date_default_timezone_set('Europe/London');
+
+/** Include PHPExcel_IOFactory */
+require_once dirname(__FILE__) . '/../Classes/PHPExcel/IOFactory.php';
+
+
+echo date('H:i:s') , " Load MergeBook1 from Excel2007 file" , EOL;
+$callStartTime = microtime(true);
+
+$objPHPExcel1 = PHPExcel_IOFactory::load(dirname(__FILE__) . "/templates/43mergeBook1.xlsx");
+
+$callEndTime = microtime(true);
+$callTime = $callEndTime - $callStartTime;
+echo 'Call time to read Mergebook1 was ' , sprintf('%.4f',$callTime) , " seconds" , EOL;
+// Echo memory usage
+echo date('H:i:s') , ' Current memory usage: ' , (memory_get_usage(true) / 1024 / 1024) , " MB" , EOL;
+
+
+echo date('H:i:s') , " Load MergeBook2 from Excel2007 file" , EOL;
+$callStartTime = microtime(true);
+
+$objPHPExcel2 = PHPExcel_IOFactory::load(dirname(__FILE__) . "/templates/43mergeBook2.xlsx");
+
+$callEndTime = microtime(true);
+$callTime = $callEndTime - $callStartTime;
+echo 'Call time to read Mergebook2 was ' , sprintf('%.4f',$callTime) , " seconds" , EOL;
+// Echo memory usage
+echo date('H:i:s') , ' Current memory usage: ' , (memory_get_usage(true) / 1024 / 1024) , " MB" , EOL;
+
+
+foreach($objPHPExcel2->getSheetNames() as $sheetName) {
+    $sheet = $objPHPExcel2->getSheetByName($sheetName);
+    $sheet->setTitle($sheet->getTitle() . ' copied');
+    $objPHPExcel1->addExternalSheet($sheet);
+}
+
+
+echo date('H:i:s') , " Write to Excel2007 format" , EOL;
+$callStartTime = microtime(true);
+
+$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel1, 'Excel2007');
+$objWriter->save(str_replace('.php', '.xlsx', __FILE__));
+
+$callEndTime = microtime(true);
+$callTime = $callEndTime - $callStartTime;
+
+echo date('H:i:s') , " File written to " , str_replace('.php', '.xlsx', pathinfo(__FILE__, PATHINFO_BASENAME)) , EOL;
+echo 'Call time to write Workbook was ' , sprintf('%.4f',$callTime) , " seconds" , EOL;
+// Echo memory usage
+echo date('H:i:s') , ' Current memory usage: ' , (memory_get_usage(true) / 1024 / 1024) , " MB" , EOL;
+
+
+// Echo memory peak usage
+echo date('H:i:s') , " Peak memory usage: " , (memory_get_peak_usage(true) / 1024 / 1024) , " MB" , EOL;
+
+// Echo done
+echo date('H:i:s') , " Done writing file" , EOL;
+echo 'File has been created in ' , getcwd() , EOL;
diff --git a/Examples/runall.php b/Examples/runall.php
index 3d94e4a5..cad5b39a 100644
--- a/Examples/runall.php
+++ b/Examples/runall.php
@@ -102,6 +102,7 @@ $aTests = array(
 	, '40duplicateStyle.php'
 	, '41password.php'
 	, '42richText.php'
+    , '43mergeWorkbooks.php'
 	, 'OOCalcReader.php'
 	, 'OOCalcReaderPCLZip.php'
 	, 'SylkReader.php'