21:25:16 Write to Excel2007 format<br />21:25:16 File written to 33chartcreate-multiple-charts.xlsx<br />21:25:16 Peak memory usage: 1.75 MB<br />21:25:16 Done writing file<br />File has been created in /var/www/html/onswitch.neon.service/vendor/phpoffice/phpexcel/Examples<br />