Returned XML-File too large

Hi,

I'm working in the SAP ABAP context (transaction SFP) and Livecycle Designer 8.0 where I have an interface to fill my form with about 1000 sets of data.
The generated PDF-file is about 90kB.
When I choose one set in a dropdown-box and send it back, the generated XML-file is about 1,8MB. There are all 1000 sets in the returned file.

Is there any possibility to return only the choosen set instead of all sets?

Greets Daniel