16:22:42 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0197 seconds<br />16:22:42 Current memory usage: 4.75 MB<br />16:22:42 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0026 seconds<br />16:22:42 Current memory usage: 4.75 MB<br />16:22:42 Write to Excel2007 format<br />16:22:42 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0108 seconds<br />16:22:42 Current memory usage: 7 MB<br />16:22:42 Peak memory usage: 7 MB<br />16:22:42 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />