.VTX Estensione file

Chiptune audio file created in a format used by older ZX Spectrum system sound chips; contains data that allows the sound chip to synthesize audio in real-time; often used for storing video game music.

VTX files can still be played back with software emulators that emulate the ZX Spectrum sound chip.

Template for creating a new drawing or chart with Visio, a business diagramming program; may be used as a starting point for creating multiple diagrams with a similar layout; much like a Visio .VST file, but saved in an XML format.