16:07:49 Write to Excel2007 format<br />16:07:49 File written to 33chartcreate-bar-stacked.xlsx<br />16:07:49 Peak memory usage: 5.5 MB<br />16:07:49 Done writing file<br />File has been created in /usr/local/apache/htdocs/GonzaloPeñalva/minas/vendor/phpoffice/phpexcel/Examples<br />