FileInfo.com


.GPK File Extension


File Type WaveLab Audio Peak File
File Format File
Common? No
File Description Contains a summary of sound wave data for an audio file opened with WaveLab; enables faster reloading of audio files in the program; created automatically when an audio file is opened in WaveLab.

By default, WaveLab does not delete GPK files after they have been created; however, the program can be configured to automatically delete GPK files when the corresponding audio file is closed; to do this, select "Options->Preferences->File;" then select "Delete peak files when closing audio files."
Program(s) that open gpk files Windows: Steinberg WaveLab

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/gpk