21:31:07 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0081 seconds<br />21:31:07 Current memory usage: 2 MB<br />21:31:07 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0026 seconds<br />21:31:07 Current memory usage: 2 MB<br />21:31:07 Write to Excel2007 format<br />21:31:07 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0038 seconds<br />21:31:07 Current memory usage: 2.5 MB<br />21:31:07 Peak memory usage: 2.5 MB<br />21:31:07 Done writing file<br />File has been created in /var/www/igeotrack/vendor/phpoffice/phpexcel/Examples<br />