02:39:17 Load from Excel2007 file<br />02:39:17 Update cell data values that are displayed in the chart<br />02:39:17 Write to Excel2007 format<br />02:39:17 File written to 34chartupdate.xlsx<br />02:39:17 Peak memory usage: 4 MB<br />02:39:17 Done writing file<br />File has been created in E:\item\doctor\vendor\phpoffice\phpexcel\Examples<br />