USAGE: - unpack file index entries

       User  feedback  is welcome, especially bugs, performance issues and last but not least convenience of the
       programs and API.

       Email Andreas Hauser hauser@genzentrum.lmu.de.

USAGE: ffindex_unpack DATA_FILENAME INDEX_FILE... November 2024                                        USAGE:(1)

       USAGE: ffindex_unpack DATA_FILENAME INDEX_FILENAME OUT_DIR

              Please note that a huge number of files might be created!

       Designed and implemented by Andreas Hauser <andy@splashground.de>.

              Please note that a huge number of files might be created!

       Designed and implemented by Andreas Hauser <andy@splashground.de>.

       USAGE: - unpack file index entries