How to open/convert a .cpk model to a usable format?

[King of Delusion]

Heya, I'm a bit new to ripping models (But I do 3D model and know how to rig) and I've been wanting to rip the models from the game Robotic;Notes Elite. I've looked into it for a few hours now and the models are all inside a file called models.cpk, I was able to extract it but it contains numerous other .cpk files (e.g. b001_000.cpk, b006_002.cpk and so on), I was unable to extract those and after looking stuff up for a few hours I was unable to find anything. If anyone knows of a way to convert them to a file format usable with 3D softwate or of a software that is able to open them, I would really appreciate it!

Thanks in advance!

[SniperDragon32]

look up CpkBrowser

[King of Delusion]

look up CpkBrowser

Thank you for the reply! I actually tried CPKBrowser but there was nothing inside the .cpk file itself. I think they might be the models themselves but that's just a guess...