07:29:09 Load from Excel2007 file<br />07:29:09 Update cell data values that are displayed in the chart<br />07:29:09 Write to Excel2007 format<br />07:29:09 File written to 34chartupdate.xlsx<br />07:29:09 Peak memory usage: 6 MB<br />07:29:09 Done writing file<br />File has been created in C:\phpEnv\www\wft\php\export\PHPExcel\Examples<br />