13:09:47 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0676 seconds<br />13:09:47 Current memory usage: 4.75 MB<br />13:09:47 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0081 seconds<br />13:09:47 Current memory usage: 4.75 MB<br />13:09:47 Write to Excel2007 format<br />13:09:47 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0176 seconds<br />13:09:47 Current memory usage: 7 MB<br />13:09:47 Peak memory usage: 7 MB<br />13:09:47 Done writing file<br />File has been created in /var/www/local/vendor/phpoffice/phpexcel/Examples<br />