MT4 is known as one of many commonly used software for financial trading in financial markets. It supports automated systems through EAs, code scripts, and custom indicators. These tools are typically coded in MetaTrader’s own language, MQL4. EX4: This file format is a binary format of the original MQ4 code. https://franciscosbdhm.shoutmyblog.com/29932995/ex4-to-mq4-an-overview