There are two types of data included in this repository: raw digitizer output files in a proprietary format, and data converted into physical units (Pascals) in Seismic Analysis Code (SAC) format.  Both types are provided for traceability purposes.

The Seismic Analysis Code (SAC) file format is one of the most commonly used formats used in seismic studies.  It can be read by a variety of programming languages, including the Obspy library in Python and RSEIS in R.  It also has a standalone interactive program.  A good reference for SAC is here:
http://ds.iris.edu/files/sac-manual/manual/file_format.html

The raw digitizer output consists of files written by the Omnirecs Datacube unit.  The manufacturer provides several methods of extracting data from these files.  Programs for data extraction are located here:
http://digos.eu/downloads-docs/