How to NOT send some form data when form is submitted

Hi,

I created a PDF form with some radiobuttons in group and checkboxes. When I get the form data values, like using Email Submission Button to send form data in XML or using Merge data files into spreadsheet, I will see the data values for those radiobuttons and checkboxes.

What I want here is to get only the data values for some controls like radiobuttons, but not other controls like checkboxes, in the XML or Excel spreadsheet after submitting the form. I just know how to hide the controls in the form, but I do need the checkboxes visible and active on the form.

Is there a way to hide or not to send some form data when form data is submitted?

Thanks

Sam