21:57:05 Write to Excel2007 format<br />21:57:05 File written to 33chartcreate-column.xlsx<br />21:57:05 Peak memory usage: 4 MB<br />21:57:05 Done writing file<br />File has been created in /home/factovizjh/legitrack_test/vendor/phpoffice/phpexcel/Examples<br />