Find your original backup or email the seller. If you don't own the code: Pay the developer for the source code upgrade.
You are either giving away your trading strategy to a stranger or downloading malware onto your trading computer. Convert Ex4 To Mq4 Online Free
Here is the brutal truth about converting EX4 files back to MQ4. Technically: Yes, it is possible. Legally & Practically: No, you shouldn't do it. Find your original backup or email the seller
A quick Google search leads to dozens of websites promising: “Convert EX4 to MQ4 Online Free – Instant Decompiler.” Here is the brutal truth about converting EX4
You cannot convert an EX4 to MQ4 like you convert a PDF to Word. EX4 is (machine instructions for the MetaTrader 4 virtual machine). MQ4 is source code (human-readable logic). To go backward, you need a "Decompiler," not a converter. How "Free Online Converters" Actually Work When a website claims to convert EX4 to MQ4 for free, they are using a process called reverse engineering (decompilation) . The software guesses what the original code looked like based on the compiled output.