It’s not a "mod" or a "downloadable pack" in the traditional sense. Far Cry 4 already includes full English audio and text in all standard global versions. If you’re looking for this pack, you likely fall into one of two situations:
The existence of the "English Language Pack" as a downloadable entity is a testament to the PC gaming community. It represents a refusal to let regional geo-blocking dictate the player experience. It’s fascinating that a simple audio file became such a hot commodity, traded like digital contraband just so players could enjoy the game in its intended language.
A small third-party utility (often called FC4LangTool.exe) automates the renaming and deletion process. You simply point it to your data_win32 folder, select "English," and click "Apply." It does everything listed in Part 3 with one click.