The VG Resource

Does anyone got a program or script to extract these files?
The files I wanna extract are .ktsl2asbin and .ktsl2stbin from a PC game called Atelier Ryza.
Please, help me out.

https://drive.google.com/open?id=1voZaP2...F373gEUyIp

I love Ryza so damn much.

I know it's late but have you figured these out? (I know you got sounds, but anything else?)