02:20:02 Write to Excel2007 format<br />02:20:02 File written to 33chartcreate-column-2.xlsx<br />02:20:02 Peak memory usage: 4 MB<br />02:20:02 Done writing file<br />File has been created in /home/imevent/public_html/backup/vendor/phpoffice/phpexcel/Examples<br />