This class can be used to validate identifier numbers of companies, individuals, government institutions and passports based in Venezuela. It connects to a Venezuela government site to check whether a given identifier number is valid. The class returns a message indicating what kind of identifier number it corresponds when it is valid. The code, messages and examples are in Spanish. In Spanish: Esta clase permite la verificación y validación del RIF (Registro de información fiscal) en Venezuela. Permite saber si un Número de RIF existe y si está asignado a una empresa en particular.