If verification fails, you need clean copies.
In Far Cry 3, these archives typically use the format signature, which is common across several Ubisoft titles from that era. Common Uses for These Files far cry 3 soundenglishdat and soundenglishfat files
Note: exact internal layout varies by engine version and platform (PC, PS3, Xbox 360 used different packing constraints). If verification fails, you need clean copies
The SoundEnglish.fat file, on the other hand, seems to be a companion file to SoundEnglish.dat. FAT stands for File Allocation Table, which suggests that this file is used to manage and organize the audio assets stored in the SoundEnglish.dat file. The SoundEnglish
If you want to use a different audio language (e.g., French or Russian) while keeping English menus, you can rename other language files to "sound_english" to trick the game into loading them. Audio Extraction: