There is only one file type that uses the .VSZ extension:
Visual Studio Wizard File
File used by Visual Studio, a software development program; saves specifications for a wizard, which guides the user through a series of questions to complete a task; used for building custom wizards that add functionality to Visual Studio and the software development process.
VSZ files use a plain text format and are similar to .INI files.
|Microsoft Visual Studio||Commercial|
Updated: July 20, 2012