On Tue, Sep 30, 2014 at 4:34 PM, David Hoover <hooverdm(a)helix.nih.gov&gt; wrote: A directory of files is too broad to be of use in itself - in the same way that defining tools to take or produce a generic "data" file is unhelpful. If you had a directory of files all the same format, then try to use the Galaxy collections feature (e.g. a collection of FASTA files). If the directory has some structure then the composite datatype is probably most suitable, e.g. an HTML file with a collection of image files; or a BLAST database made up of several binary files. Peter