15:30:21 Write to Excel2007 format<br />15:30:21 File written to 33chartcreate-multiple-charts.xlsx<br />15:30:21 Peak memory usage: 2.5 MB<br />15:30:21 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />