16:02:15 Write to Excel2007 format<br />16:02:15 File written to 33chartcreate-column-2.xlsx<br />16:02:15 Peak memory usage: 4 MB<br />16:02:15 Done writing file<br />File has been created in /home/imevent/public_html/backup/vendor/phpoffice/phpexcel/Examples<br />