All of the EPICS2014 data are in the form of tabulated data with a defined method of interpolation between tabulated values. Cross sections, form factors and scattering functions are log-log interpolable, and average secondary energies are linear-linear interpolable. In the case of photoexcitation data, it is defined by tabulated discrete energy, strength pairs.

EPICS2014 is available in the Livermore Extended ENDL format as well as in the ENDF-6 format These two formats are designed to allow the data to be processed for later use in applications. Note, the excitation data is provided as a separate file and identified as EXDL (Evaluation eXcitation Data Library). This data is only available in the ENDL format; the ENDF-6 format does not have any provision for this data.