A CFG file, also known as a configuration file, is a text file that stores settings and preferences for a particular application or game. In the context of Bluestacks BGMI Smart Controls, a CFG file contains the customized control layout and settings for playing BGMI on Bluestacks.

Bluestacks is a popular Android emulator that allows users to play mobile games on their PC. BGMI (Battlegrounds Mobile India) is a popular battle royale game that has gained immense popularity in India. Bluestacks offers a feature called Smart Controls, which provides a customizable interface to enhance the gaming experience.