MT4 is known as among the most widely used applications for traders in Forex. It supports automated strategies through trading bots, custom scripts, and custom indicators. These tools can be written in MetaQuotes’ own language, MQL4. EX4: This type of file is a compiled version of the MQ4 source code. https://holdenlsnmg.blogzet.com/ex4-to-mq4-things-to-know-before-you-buy-45286300