15:31:09 Write to Excel2007 format<br />15:31:09 File written to 33chartcreate-column-2.xlsx<br />15:31:09 Peak memory usage: 4 MB<br />15:31:09 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />