14:15:06 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0164 seconds<br />14:15:06 Current memory usage: 4.75 MB<br />14:15:06 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0023 seconds<br />14:15:06 Current memory usage: 4.75 MB<br />14:15:06 Write to Excel2007 format<br />14:15:06 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0079 seconds<br />14:15:06 Current memory usage: 7 MB<br />14:15:06 Peak memory usage: 7 MB<br />14:15:06 Done writing file<br />File has been created in /var/www/local/vendor/phpoffice/phpexcel/Examples<br />