23:59:52 Write to Excel2007 format<br />23:59:52 File written to 33chartcreate-bar-stacked.xlsx<br />23:59:52 Peak memory usage: 6 MB<br />23:59:52 Done writing file<br />File has been created in /home/corpubc/public_html/SistemUBC/vendor/phpoffice/phpexcel/Examples<br />