Are you currently having trouble with specifically, or is the entire menu in a different language?
Installing an English language pack restores full English audio, subtitles, and user interface text. This guide provides step-by-step instructions to safely download, install, and configure the English language pack for Far Cry 3 on PC. Why Far Cry 3 Might Lack English Files English Language Pack For Far Cry 3
Find the line and change it to Language="english" . : Are you currently having trouble with specifically, or
This usually means a registry conflict. Double-check that your Registry "Language" value matches the files present in your data_win32 folder. English Language Pack For Far Cry 3