The name of the file that the packed asset describes.
For Player builds this is the filename relative to the Data folder of the build, for example globalgamemanagers.assets.resS.
For an AssetBundle this is the filename inside the Unity Archive file, for example CAB-cc6c60ef8808e0fc6663136604321554 and CAB-cc6c60ef8808e0fc6663136604321554.resS.
Additional resources: BuildFile