23:44:24 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0028 seconds<br />23:44:24 Current memory usage: 2 MB<br />23:44:24 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0017 seconds<br />23:44:24 Current memory usage: 2 MB<br />23:44:24 Write to Excel2007 format<br />23:44:24 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0023 seconds<br />23:44:24 Current memory usage: 2 MB<br />23:44:24 Peak memory usage: 2 MB<br />23:44:24 Done writing file<br />File has been created in /var/www/szym/vendor/phpoffice/phpexcel/Examples<br />