21:36:09 Load from Excel2007 file<br />21:36:09 Update cell data values that are displayed in the chart<br />21:36:09 Write to Excel2007 format<br />21:36:09 File written to 34chartupdate.xlsx<br />21:36:09 Peak memory usage: 6 MB<br />21:36:09 Done writing file<br />File has been created in /var/www/chart_maker/vendor/phpoffice/phpexcel/Examples<br />