Parsing MT940s without 1,2,3 Header Blocks

[cottiar]

I've been exploring prowide's open source library to convert MT940s to an JSON format. While the library does a great job when a standard MT940 formatted file is fed, it fails to handle files without header blocks namely 1,2,3. In other words, the files contain the message text block 4 (20, 25, 28C, 60F, 86, 62F, 64 records) directly. This is how our banking partner transfers the file and the SAP system seem to be capable of accepting this import. Is there anyway this library could handle such files? Please advise.