18:38:45 Write to Excel2007 format<br />18:38:45 File written to 33chartcreate-column.xlsx<br />18:38:45 Peak memory usage: 6.5 MB<br />18:38:45 Done writing file<br />File has been created in /mnt/external-drives/mb-oracle-bv3/html-produccion/demogasolinera/mbinv/vendor/phpoffice/phpexcel/Examples<br />