15:18:16 Write to Excel2007 format<br />15:18:16 File written to 33chartcreate-column.xlsx<br />15:18:16 Peak memory usage: 6 MB<br />15:18:16 Done writing file<br />File has been created in /home/unidemmx/public_html/UNIDEM/vendor/phpoffice/phpexcel/Examples<br />