MetaTrader 4 is referred to as one of the most widely used applications for traders in financial markets. It allows automated strategies through automated advisors, scripts, and indicators. These capabilities are typically coded in MetaTrader’s native language, MQL. EX4: This file format is the compiled version of the MQ4 file. https://simonzjpwd.ttblogs.com/10042595/ex4-to-mq4-an-overview