If you are using a legitimate Steam copy and want to unlock DLC you haven't purchased, tools like CreamInstaller are commonly used by the community on forums like CreamInstaller
To help you with the specific IDs, are you currently missing? dragon ball z kakarot dlc unlockercodex full
Downloads from unofficial "Codex" or repack sites often contain viruses, miners, or other malicious software. If you are using a legitimate Steam copy