# File Management

- [File Management Overview](file-management-overview.md)
- Application File
  - [Application File Overview](app-file-overview.md)
  - [Application Sandbox Directory](app-sandbox-directory.md)
  - Application File Access and Management
    - [Accessing Application Files](app-file-access.md)
    - [Uploading and Downloading Application Files](app-file-upload-download.md)
    - [Obtaining Application and File System Space Statistics](app-fs-space-statistics.md)
  - [Sending Files to an Application Sandbox](send-file-to-app-sandbox.md)
  - [Sharing an Application File](share-app-file.md)
  - Application Data Backup and Restoration
    - [Application Data Backup and Restoration Overview](app-file-backup-overview.md)
    - [Backing Up and Restoring Application Access Data](app-file-backup-extension.md)
    - [Backing Up and Restoring Application-triggered Data (for System Applications Only)](app-file-backup.md)
- User File
  - [User File Overview](user-file-overview.md)
  - Selecting and Saving User Files (FilePicker)
    - [Selecting User Files](select-user-file.md)
    - [Saving User Files](save-user-file.md)
  - [Developing a FileManager Application (for System Applications Only)](dev-user-file-manager.md)
  - [Managing External Storage Devices (for System Applications Only)](manage-external-storage.md)
- Distributed File System
  - [Distributed File System Overview](distributed-fs-overview.md)
  - [Setting the Security Level of a Distributed File](set-security-label.md)
  - [Accessing Files Across Devices](file-access-across-devices.md)