| FilePickerFileType | Represents a name mapped to the associated file types (extensions). |
| FilePickerFileTypes | Dictionary of well known file types. |
| FilePickerOpenOptions | Options class for OpenFilePickerAsync(FilePickerOpenOptions) method. |
| FilePickerSaveOptions | Options class for SaveFilePickerAsync(FilePickerSaveOptions) method. |
| FolderPickerOpenOptions | Options class for OpenFolderPickerAsync(FolderPickerOpenOptions) method. |
| LauncherExtensions | |
| PickerOptions | Common options for OpenFolderPickerAsync(FolderPickerOpenOptions), OpenFilePickerAsync(FilePickerOpenOptions) and SaveFilePickerAsync(FilePickerSaveOptions) methods. |
| StorageItemProperties | Provides access to the content-related properties of an item (like a file or folder). |
| StorageProviderExtensions | Group of public extensions for IStorageProvider class. |
| ILauncher | Starts the default app associated with the specified file or URI. |
| IStorageBookmarkFile | |
| IStorageBookmarkFolder | |
| IStorageBookmarkItem | |
| IStorageFile | Represents a file. Provides information about the file and its contents, and ways to manipulate them. |
| IStorageFolder | Manipulates folders and their contents, and provides information about them. |
| IStorageItem | Manipulates storage items (files and folders) and their contents, and provides information about them |
| IStorageProvider |
| WellKnownFolder | Specifies enumerated constants used to retrieve directory paths to system well known folders. |