19:48:37 Write to Excel2007 format<br />19:48:37 File written to 33chartcreate-column.xlsx<br />19:48:37 Peak memory usage: 6.5 MB<br />19:48:37 Done writing file<br />File has been created in /mnt/external-drives/mb-oracle-bv3/html-produccion/lamontana/mbinv/vendor/phpoffice/phpexcel/Examples<br />