18:28:07 Load from Excel2007 file<br />18:28:07 Update cell data values that are displayed in the chart<br />18:28:07 Write to Excel2007 format<br />18:28:07 File written to 34chartupdate.xlsx<br />18:28:07 Peak memory usage: 2 MB<br />18:28:07 Done writing file<br />File has been created in /home/hycmvsgn/heal.co.ke/invoices/vendor/phpoffice/phpexcel/Examples<br />