17:31:18 Write to Excel2007 format<br />17:31:18 File written to 33chartcreate-multiple-charts.xlsx<br />17:31:18 Peak memory usage: 2 MB<br />17:31:18 Done writing file<br />File has been created in /var/www/html/petroerp3/vendor/phpoffice/phpexcel/Examples<br />