13:25:10 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0061 seconds<br />13:25:10 Current memory usage: 2 MB<br />13:25:10 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0396 seconds<br />13:25:10 Current memory usage: 2 MB<br />13:25:10 Write to Excel2007 format<br />13:25:10 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0056 seconds<br />13:25:10 Current memory usage: 2 MB<br />13:25:10 Peak memory usage: 2 MB<br />13:25:10 Done writing file<br />File has been created in /var/www/php7.4/jayhun/vendor/phpoffice/phpexcel/Examples<br />