SIGMA is a family of Scala internal Domain-Specific Languages (DSLs) for model manipulation that provides expressive and efficient API for model consistency checking, model-to-model and model-to-text transformations. In this paper we describe a SIGMA solution for the Transformation Tool Contest 2014 (TTC'14) FIXML case study, a transformation of FIXML XML format into class definitions in Java, C# and C++. The full case study including all three extensions have been realized and are publicly available on Github and in the SHARE environment.