What is an unitypackage file and how do I open an unitypackage file?
UNITYPACKAGE is a compressed package created by Unity, a 3D game development application. It contains project asset and library files used for building a game, for transferring project files from one project to another, and it may be included in new Unity projects to create a starting point for developing a game.
Relevant unitypackage file links:How to open unitypackage file on Youtube
How to open unitypackage file on Wikipedia
How to open unitypackage file on Microsoft.com