09:34:17 Write to Excel2007 format<br />09:34:17 File written to 33chartcreate-column-2.xlsx<br />09:34:17 Peak memory usage: 4 MB<br />09:34:17 Done writing file<br />File has been created in /home/fasttech/gymbrain.fasttechsoft.com/vendor/phpoffice/phpexcel/Examples<br />