I've implanted ACH file format and, worse, FedWire BAI2 file parsing… it's absolutely archaic. The worst part is that various partner banks will have differentl

I've implanted ACH file format and, worse, FedWire BAI2 file parsing… it's absolutely archaic. The worst part is that various partner banks will have differently erroneous variations of their implementation of the BAI2 spec… so we had to intentionally code buggy version to match the bugs they had on the other side… ridiculous.