08:20:40 Load from Excel2007 file<br />08:20:40 Update cell data values that are displayed in the chart<br />08:20:40 Write to Excel2007 format<br />08:20:40 File written to 34chartupdate.xlsx<br />08:20:40 Peak memory usage: 6 MB<br />08:20:40 Done writing file<br />File has been created in /var/www/html/add/jhyj/laravel/vendor/phpoffice/phpexcel/Examples<br />