Modify already created .xlsx file (send bean data to write to excel)

HI all,

i want to ask about a question regarding the title.

let's say i have a .xlsx file, already filled wih formulae and chart is prepared, but i want the data to be dynamic here, so the chart shown will change according to data sent

i already created a function to generate .xlsx file and send data to it, but can't write data to existing .xlsx file as it will always being replaced by the generated one.

is this possible with jasper java api?

thanks