08:27:37 Write to Excel2007 format<br />08:27:37 File written to 33chartcreate-bar-stacked.xlsx<br />08:27:37 Peak memory usage: 2 MB<br />08:27:37 Done writing file<br />File has been created in /home/fasttech/gymbrain.fasttechsoft.com/vendor/phpoffice/phpexcel/Examples<br />