06:18:54 Write to Excel2007 format<br />06:18:54 File written to 33chartcreate-column.xlsx<br />06:18:54 Peak memory usage: 12 MB<br />06:18:54 Done writing file<br />File has been created in /home/ykcomq5/eservices.ykcs.net/vendor/phpoffice/phpexcel/Examples<br />