No, of course it doesn't read someone else's data format. It does provide a tied interface to complex data storage using only what comes with perl though, which I thought was what you were asking about.

If you're specifically wondering about FASTA files, search for FASTA on CPAN. There are a handful of modules for it.

In reply to Re^3: Tie-ing files containing complex data structures by perrin
in thread Tie-ing files containing complex data structures by citromatik

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