08:49:51 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0051 seconds<br />08:49:51 Current memory usage: 1.75 MB<br />08:49:51 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0026 seconds<br />08:49:51 Current memory usage: 1.75 MB<br />08:49:51 Write to Excel2007 format<br />08:49:51 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0036 seconds<br />08:49:51 Current memory usage: 2 MB<br />08:49:51 Peak memory usage: 2 MB<br />08:49:51 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />