Kaitou Joker irarc/irlist?

[Carpaccio]

Apparently these types of files are recurring in certain 3DS games, though none of the extraction methods I've found could properly extract/decrypt these. I managed to seek out some certain filenames within them such as the familiar 'CGFX' and 'CMDL', which are very common. So it's just a matter of figuring out how to extract the internal files from these archives. Here's the two primary files I've been searching through.

https://www.dropbox.com/s/jq82xxnoc9kd8u...l.zip?dl=0

I was hoping someone here could give these a look and help figure them out!