: These are the source code files written in MetaQuotes 4 language. MQ4 files are human-readable and editable, allowing developers to create, modify, and customize trading strategies and indicators.
While the tool attempts to recreate the original code, the output is rarely a perfect replica.
The world of MetaTrader 4 (MT4) was once a digital fortress. For years, developers protected their proprietary trading algorithms by compiling their source code () into executable files ( EX4 ). This process was a "one-way street"—or so everyone thought [1, 2].