06:40:52 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0029 seconds<br />06:40:52 Current memory usage: 2 MB<br />06:40:52 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0020 seconds<br />06:40:52 Current memory usage: 2 MB<br />06:40:52 Write to Excel2007 format<br />06:40:52 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0023 seconds<br />06:40:52 Current memory usage: 2 MB<br />06:40:52 Peak memory usage: 2 MB<br />06:40:52 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />