21:36:17 Write to Excel2007 format<br />21:36:17 File written to 33chartcreate-multiple-charts.xlsx<br />21:36:17 Peak memory usage: 4 MB<br />21:36:17 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />