Most EX4 files are the intellectual property of their developers. Decompiling them without permission violates copyright laws in most jurisdictions (e.g., DMCA Section 1201 in the US, EU Copyright Directive).
Disclaimer: Decompiling software may violate the intellectual property rights of the original developer and the user agreement of MetaQuotes Software Corp. Use such tools only for legal and ethical purposes. Google Groups convert ex4 to mq4 online free fix
If you absolutely need to recover or fix an EX4 file, here are legitimate approaches. None are fully automatic or entirely free, but they are honest. Most EX4 files are the intellectual property of
If you are determined to try, your best bet lies in legacy desktop software. These are the heavy hitters often mentioned in the community: DMCA Section 1201 in the US