VXML file format is used as a digital document standard for defining the voice dialogues and interactive media taken place between human and computers. This file is used in making voice or audio responsive applications.

This file format is used by voice browser for interaction purposes. The format of this file is based on XML standard. A wide range of voice dependent or voice requiring systems use this file format for interaction between digital system and analogue environment. The protocol used for transporting VoiceXML file data is HTTP. The VoiceXML file can either be static or can by dynamic depending upon the requirement.