Joined: 23 Nov 2006 Posts: 19270 Location: Inside the Matrix
What type of data is contained in the unformatted file?
What process on the mainframe created this file?
Once it is received in an e-mail how will it be used?
What should be the attributes of the fixed file that is created from this undefined data?
What are the rest of the attributes of the input data (other than U)?
If you post the answeers to these (any maybe more) questions, we will be better able to make suggestions.
Possibly - possibly not. It is better to post solutions when the requirement is understood.