14:56:34 Write to Excel2007 format<br />14:56:34 File written to 33chartcreate-column-2.xlsx<br />14:56:34 Peak memory usage: 2 MB<br />14:56:34 Done writing file<br />File has been created in /home/fasttech/gymbrain.fasttechsoft.com/vendor/phpoffice/phpexcel/Examples<br />