The flash.filesystem package contains classes used in accessing the filesystem. This package is only available to content running in the AIR runtime.

 File A File object represents a path to a file or directory.
 FileMode The FileMode class defines string constants used in the fileMode parameter of the open() and openAsync() methods of the FileStream class.
 FileStream A FileStream object is used to read and write files.
 StorageVolume A StorageVolume object includes properties defining a mass storage volume.
 StorageVolumeInfo The StorageVolumeInfo object dispatches a StorageVolumeChangeEvent object when a storage volume is mounted or unmounted.