It's encrypted, I've made a special version of the UTF tools for these (also seen in Valkyria Chronicles 2), but this file has the additional problem that it only has an ITOC, no main TOC. Here's a special build to handle this.
Thank you for your help. But where are the extracted files? I use the tool to extrac the cpk file but after it fininshes and nothing happen. Can you tell me where are the extracted files.
They might wind up in your Documents and Settings directory somewhere, search for over.cpk or whatever the name of the cpk is. The files are put in a subdirectory of the current directory, but if you don't run from the command line or a shortcut I don't recall what the default current directory is in Windows.