08:59:53 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0191 seconds<br />08:59:53 Current memory usage: 4.25 MB<br />08:59:53 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0033 seconds<br />08:59:53 Current memory usage: 4.5 MB<br />08:59:53 Write to Excel2007 format<br />08:59:53 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0108 seconds<br />08:59:53 Current memory usage: 6.75 MB<br />08:59:53 Peak memory usage: 6.75 MB<br />08:59:53 Done writing file<br />File has been created in /var/www/igeotrack/vendor/phpoffice/phpexcel/Examples<br />