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Each model comprises several files on disk, such as the model file, material definition files, and texture images.
When you save a model in the Model Editor, the editor creates or re-creates some of these files, updates others, and leaves alone the rest. The result is normally exactly what you want and expect, but sometimes you may wish to hand-tune some details (such as the material definitions) without and independently of the Model Editor. In such cases, it is very helpful to understand the files that belong to a model.
This section explains the files that together form a model and how they relate to each other.