IRI NextForm can help you easily convert the essential format, record layout, data types, and endian characteristics in a structured data source (file or table) to another. This is helpful not only for quick one-off file migrations, but for data replication, and possibly federation as well.
The "New Single Source Migration" job wizard dialog below gives you insight into this process, which is a simple way to expedite a format conversion.
This result of this process is a portable job script in the NextForm Control Language (.ncl) which you can modify in the GUI or any text editor. Easily remap field positions and sizes, change data types, endian characteristics, and so on.