There are 3 file types use the .WPK file extension:
1. Nero Wave Editor File
Describes a sound file edited with Nero Wave Editor, part of the the Nero CD/DVD disc authoring suite; contains edits made to the audio file, but not the actual audio itself.
Updated: October 23, 2006
2. WordPerfect Macro
Macro that automates a certain function or set of tasks in the Corel WordPerfect word processing program.
Updated: January 28, 2021
3. GuinXell Package File
File archive used by GuinXell, a homebrew application that runs a Windows-like interface on the Sony PSP; contains one or more files often consisting of a .LUA executable or a document; used for packaging file archives for the GuinXell platform.
WPK files can be transferred to a PSP unit using Microsoft Windows and a USB connection.
Updated: July 22, 2010