07:27:30 Load from Excel2007 file<br />07:27:30 Update cell data values that are displayed in the chart<br />07:27:30 Write to Excel2007 format<br />07:27:30 File written to 34chartupdate.xlsx<br />07:27:30 Peak memory usage: 2 MB<br />07:27:30 Done writing file<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo-new/vendor/phpoffice/phpexcel/Examples<br />