Directory Structure

Before unpacking a package or file, its best if its in the same directory structure that it needs to be when you import it back into the game.

For example, if you want to modify the ps2data/image/ff12/test_battle/us/binaryfile/battle_pack.bin (package) file, you should recreate its directory structure before moving it into the workshop/source directory.

That way once you unpack it, do your changes, and repack it, you can simply create an archive out of the workshop/newpack directory and then install it (e.g. Vortex).

This is especially important when working with language files. Since only if a file is in a language directory (e.g. us, in, ...) will it be recognized as such.

If you put a Japanese text file into an us directory, the workshop will assume its an English text file since the file itself doesn't contain any information about which language its been written for. This is a technical limitation from the game.

There are also cases where a file is duplicated across various languages. In such a case, you can also only modify one version of it and then use it to overwrite the others. Just be sure that its indeed an identical file by either comparing their binary (or unpacked form) via a hex or text editor.