Instead, it compiles the code into a series of zeros and ones, called bits, that the computer reads in real time. The computer does not save ex4 file information in human readable format.
Programmers can access this file type in order to make changes to the EA or indicator. When you install an expert advisor, you may have noticed two different types of files listed in the experts or indicators folder.mq4 files hold the original programming code in the MQL language.
The goal of decompiling is to access the original source in order to modify it in some manner.
Decompiling a file means to break open the compiled source code to view the contents.