23:31:00 Write to Excel2007 format<br />23:31:00 File written to 33chartcreate-bar-stacked.xlsx<br />23:31:00 Peak memory usage: 4 MB<br />23:31:00 Done writing file<br />File has been created in /home/admision/public_html/POSTGRADO/vendor/phpoffice/phpexcel/Examples<br />