NSACloud

They're not the old versions of the songs, they're remade for the remake. Each is a different language, German, French, English, Japanese and probably something else I don't remember. I...

Yes they are there. It's possible they don't get used. There's lots of unused things left over from the original game. Sounds are less likely to contain unused things though...

Where is this file from? The tool is only designed to work with nier replicant

I know, but the tool is only for pck files that are from nier replicant