21:31:34 Write to Excel2007 format<br />21:31:34 File written to 33chartcreate-multiple-charts.xlsx<br />21:31:34 Peak memory usage: 8 MB<br />21:31:34 Done writing file<br />File has been created in /home/imfmm/public_html/application/formation-professionnelle/vendor/phpoffice/phpexcel/Examples<br />