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What is an ASSET file?
An ASSET file is an asset or configuration file used by Unity, a video game development program. It contains either a game asset or project settings. For example, DynamicsManager.asset stores a game's physics settings.
Unity is a game development program with which developers can create 2D and 3D video games. Various Unity game assets can be saved as ASSET files. For example, materials, animations, and skins can all be saved as ASSET files. These files may also use more specific extensions, such as .mat (previously .material), .ANIM, and .GUIskin.
When a developer creates a Unity project, the program automatically creates several ASSET files associated with that project. These files, which are stored in the project's ProjectSettings directory, contain project-level settings. Some of these files include:
How to open an ASSET file
You can import ASSET files that contain a game asset into a Unity project. To do so, place the file in your project's Assets folder. The file will then appear in Unity's Project window, in your Assets folder.
You can replace existing project-level ASSET files by placing the replacement file in your project's ProjectSettings directory.