Where does Report Builder save the report formats?
Accepted answer
I'm not sure whether I really understand you question, but if you want to know where the reports created by users are stored, please have a look at this question by Guido Schneider:
and the answer from Steven Shawn:
The /server/conf/rs/db directory is not a derby DB. It is a JENA TDB database and is used exclusively to store our report definitions and queries. Currently this is only persistence mechanism for the Report Builder. We are exploring other alternatives for future releases.