21:26:59 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0194 seconds<br />21:26:59 Current memory usage: 2 MB<br />21:26:59 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0015 seconds<br />21:26:59 Current memory usage: 2 MB<br />21:26:59 Write to Excel2007 format<br />21:26:59 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0048 seconds<br />21:26:59 Current memory usage: 2 MB<br />21:26:59 Peak memory usage: 2 MB<br />21:26:59 Done writing file<br />File has been created in /home/myitalianu/itdepartment/vendor/phpoffice/phpexcel/Examples<br />