EXODUS II is a model developed to store and retrieve finite element geometry, topology, and transient data for finite element analyses. It is used for preprocessing, postprocessing, as well as code to code data transfer. ExodusII is based on netcdf. It includes the nemesis parallel extension.
GetData is a library that provides an API to interface with dirfile databases. The dirfile database format is designed to provide a fast, scalable format for storing and reading binary, synchronously-sampled, time-ordered data. GetData was originally written for the BOOMERanG and BLAST experiments as a data format suitable for use for both quick-look and data reduction. It is now used by many other cosmological and astrophysical experiments including ACT, Planck, Spider, Keck, as well as other projects.