How to extract WSB, and WWB files?

[Top Nep 76]

I'm trying to extract the sounds of Senran Kagura Shinovi Versus, and Megatagmension Blanc + Neptune vs. Zombies for the PC. However I have no idea what these file types even are, let alone how to extract them. I can't find any guides out there so I'm wondering if anyone knows how to extract these files so I can use/upload them for others to use. I'd really appreciate any help I can get with using, and extracting these files.