21:17:27 Write to Excel2007 format<br />21:17:27 File written to 33chartcreate-line.xlsx<br />21:17:27 Peak memory usage: 2 MB<br />21:17:27 Done writing file<br />File has been created in /home/fasttech/gymbrain.fasttechsoft.com/vendor/phpoffice/phpexcel/Examples<br />