06:18:43 Write to Excel2007 format<br />06:18:43 File written to 33chartcreate-column.xlsx<br />06:18:43 Peak memory usage: 4 MB<br />06:18:43 Done writing file<br />File has been created in /home/factovizjh/legitrack/vendor/phpoffice/phpexcel/Examples<br />