This java tool checks the format of a NetCDF file and produces a report of conformity with: - Argo floats NetCDF formats - EGO gliders NetCDF formats - OceanSITES NetCDF formats, with Copernicus implementation (valid rules :A_CF.xml & B_CF.xml) - OCO NetCDF formats (coastal operational oceanography) The NetCDF format checker is flexible, you may add your own format rules in the RULES directory. Each file format is specified in an XML rules file.