What is a sfk file and how do I open a sfk file?
SFK files store the waveform image of an audio wave file saved by Sound Forge, Sony Vegas, or a Sony digital media device. The SFK is created automatically when an audio file is opened with Sound Forge or Sony Vegas. Such files are stored in the same folder with the same name as the audio file, but SFK is added after the original extension. SFK files are not intended to be opened or edited manually, and do not contain any actual audio data.
Relevant sfk file links:How to open sfk file on Youtube
How to open sfk file on Wikipedia
How to open sfk file on Microsoft.com