Do you really think that's the right way to open a topic?
Anyway I think you are talking about Just Dance 2017 and this script: http://aluigi.altervista.org/bms/just_dance_2014.bms
The good news is that the script is valid for reimporting so you should be able to reimport the files back into the ipk archive, read section 3 of http://aluigi.org/papers/quickbms.txt
The bad news is that I see a "CRC" field in the information of the archived files and the game may refuse to load the edited files.
So you must try but if it doesn't work (game not loading) there is no solution.