15:39:07 Write to Excel2007 format<br />15:39:07 File written to 33chartcreate-column.xlsx<br />15:39:07 Peak memory usage: 4 MB<br />15:39:07 Done writing file<br />File has been created in /home/factovizjh/legitrack/vendor/phpoffice/phpexcel/Examples<br />