or a guide for file extraction and installation.
I'm not sure how to help with that. Your request could mean a few different things: of game localization and "undub" patches. IEG2-CS-NEPPU-(UNDUB)-v2.1-CIA-Ziperto.rar
Could you clarify if you're looking for a on the topic or a technical guide for this specific file? or a guide for file extraction and installation