Hi, i have a problem of changing values in exist excel file.
I made a sample.xlsx that has values and many chart.
Anyway i can't create this all charts in the php code because there are to many charts.
therefore, i want to change only values of this file.
but if i opened a sample.xlsx file and change values than all charts disappear...
How can i do change values maintaining all charts??? Help me please!!!
i used this open code and change the cell.
$objPHPExcel = PHPExcel_IOFactory::load("sample.xlsx");