There is only one file type that uses the .VPW extension:
VoxPro Wave File
Audio file created by VoxPro, an audio recording and editing application; contains an audio file in the WAVE format with an exclusive Resource Interchange File Format (RIFF) chunk (a set of data) used to render the file according to the user-applied effects and edits.
When you save your recordings in VoxPro, the default file type is VPW, which will create a VPW file. You can easily create a .WAV file from your VPW file by simply renaming the extension to WAV. It will not sound the same as your VPW file though, it will play the original audio then it will play any effects or audio pasted from other files.
NOTE: Audion Labs was acquired by Wheatstone Corporation.
Updated: April 29, 2017