09:12:23 Load from Excel2007 file<br />09:12:23 Update cell data values that are displayed in the chart<br />09:12:23 Write to Excel2007 format<br />09:12:23 File written to 34chartupdate.xlsx<br />09:12:23 Peak memory usage: 2 MB<br />09:12:23 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />