19:01:03 Load from Excel2007 file<br />19:01:04 Update cell data values that are displayed in the chart<br />19:01:04 Write to Excel2007 format<br />19:01:04 File written to 34chartupdate.xlsx<br />19:01:04 Peak memory usage: 6 MB<br />19:01:04 Done writing file<br />File has been created in /home/htdocs/zhyl/vendor/PHPExcel/Examples<br />