09:11:23 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0183 seconds<br />09:11:23 Current memory usage: 2 MB<br />09:11:23 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0017 seconds<br />09:11:23 Current memory usage: 2 MB<br />09:11:23 Write to Excel2007 format<br />09:11:23 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0121 seconds<br />09:11:23 Current memory usage: 4 MB<br />09:11:23 Peak memory usage: 4 MB<br />09:11:23 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />