I couldn't find anything that you can immediately use neither on google nor on CPAN. However, I did find the actual file format description, which you can get here.
Do you have access to the database from which the extract file was created? If so, you may consider using DBD::DB2 and DBI to extract the needed data yourself and then store it in whatever format you like.
Or you can write a module for parsing IXF files and submit it to CPAN. :)

--perlplexer