09:29:12 Write to Excel2007 format<br />09:29:12 File written to 33chartcreate-bar-stacked.xlsx<br />09:29:12 Peak memory usage: 6 MB<br />09:29:12 Done writing file<br />File has been created in /home/ykcomq5/hrm.ykcs.net/vendor/phpoffice/phpexcel/Examples<br />