Three example programs have been provided with HL-HDF. Two of them are modelled after the BUFR software developed and maintained by the EUMETNET Operational Programme for the Exchange of Weather Radar Information (OPERA). This software has two programs called `encbufr' and `decbufr' used to encode and decode BUFR messages to/from an ASCII file containing header information and raw data in a binary file. The third example is modelled after a program called `griblist' developed by SMHI to query the contents of a GRIB file. GRIB and BUFR are format standards specified by the World Meteorological Organization.