19:47:01 Load from Excel2007 file<br />19:47:01 Update cell data values that are displayed in the chart<br />19:47:01 Write to Excel2007 format<br />19:47:01 File written to 34chartupdate.xlsx<br />19:47:01 Peak memory usage: 2 MB<br />19:47:01 Done writing file<br />File has been created in /home/fasttech/gymbrain.fasttechsoft.com/vendor/phpoffice/phpexcel/Examples<br />