05:49:34 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0089 seconds<br />05:49:34 Current memory usage: 1.75 MB<br />05:49:34 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0064 seconds<br />05:49:34 Current memory usage: 1.75 MB<br />05:49:34 Write to Excel2007 format<br />05:49:34 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0078 seconds<br />05:49:34 Current memory usage: 2 MB<br />05:49:34 Peak memory usage: 2 MB<br />05:49:34 Done writing file<br />File has been created in /var/www/dolphin/vendor/phpoffice/phpexcel/Examples<br />