19:44:11 Write to Excel2007 format<br />19:44:11 File written to 33chartcreate-multiple-charts.xlsx<br />19:44:11 Peak memory usage: 2 MB<br />19:44:11 Done writing file<br />File has been created in /home/acadtutor/edu.acadtutor.ru/vendor/phpoffice/phpexcel/Examples<br />