A system and method of converting a file is disclosed that is based on a first standard to a file that is based on a second standard. The concerned standards can be IEC 61970 and IEC 61850 or their equivalents. For conversion, a file based on IEC 61970 is coded according to CIMXML (RDF Schema), and a file in IEC 61850 is coded according to SCL (XML Schema). The data in each file is modelled by using a UML model for the corresponding standard. The method includes the automatic generation of mapping rules that can be based on the UML models of the two standards and the mappings between the two standards. The method further converts the identified elements by using the generated mapping rules. Finally, post-processing rules can be applied to the converted elements to generate the file, based on the second standard.