FLR00103S File `xxxx` from R/T `yyyy` is too corrupt to be parsed. Last good record read : recordType = `zzzz`, offset = `aaaa`.

Explanation

Gateway Server

The record length exceeds the maximum record length.

xxxx: is the name of the file
yyyy: is the routing number
zzzz: is the record type
aaaa: is the offset into the file

Operator response

Use an editor to validate the contents of the file at offset aaaa. Send the file back to the originator.