Need one help on Aero Reports configurations.

I have install the Aero reports on my pc. my question is very basic if i want to make any changes in existing working reports .

lets take a example of accounting balance sheet report which is right now having sxw file and RML file already created. so now if i want to make some changes which also generate using aero reports so how i have to do.

what is way for to convert a RML or SXW changes also effect in the odt file.

or i have to create a seprate Odt for aero reports for each already reports available.????