15:15:57 Load from Excel2007 file<br />15:15:57 Update cell data values that are displayed in the chart<br />15:15:57 Write to Excel2007 format<br />15:15:57 File written to 34chartupdate.xlsx<br />15:15:57 Peak memory usage: 2 MB<br />15:15:57 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />