# fileExporter(isPresented:items:contentTypes:onCompletion:onCancellation:) Presents a system dialog allowing the user to export a collection of `Transferable` items to files on disk. ``` nonisolated func fileExporter(isPresented: Binding, items: C, contentTypes: [UTType] = [], onCompletion: @escaping (Result<[URL], any Error>) -> Void, onCancellation: @escaping () -> Void = { }) -> some View where C : Collection, T : Transferable, T == C.Element ``` ## Parameters `isPresented` A binding to whether the dialog should be shown. `items` Collection of values to be saved on disk. `contentTypes` The content types to use for the exported files. If empty, SwiftUI uses the content types from the `transferRepresentation` property provided for `Transferable` conformance. `onCompletion` A callback that will be invoked when the operation has succeeded or failed. `onCancellation` A callback that will be invoked if the user cancels the operation. ## Discussion In order for the dialog to appear, `isPresented` must be set to `true`. When the operation is finished, `isPresented` will be set to `false` before `onCompletion` is called. If the user cancels the operation, `isPresented` will be set to `false` and `onCancellation` will be called. For example, a button that exports a collection of photos might look like this: ``` struct ExportPhotosButton: View { @State private var isExporterPresented = false var photos: [Photo] var body: some View { Button("Export Photos") { isExporterPresented = true } .fileExporter( isPresented: $isExporterPresented, items: photos ) { result in switch result { case .success(let urls): urls.forEach { print("Saved to \($0)") } case .failure(let error): print(error) } } } } struct Photo: Transferable { ... } ``` To further configure the dialog’s appearance and behavior, use these view modifiers: [`fileDialogDefaultDirectory(_:)`](/documentation/SwiftUI/View/fileDialogDefaultDirectory(_:)), [`fileDialogConfirmationLabel(_:)`](/documentation/SwiftUI/View/fileDialogConfirmationLabel(_:)), [`fileDialogMessage(_:)`](/documentation/SwiftUI/View/fileDialogMessage(_:)), [`fileDialogBrowserOptions(_:)`](/documentation/SwiftUI/View/fileDialogBrowserOptions(_:)), [`fileExporterFilenameLabel(_:)`](/documentation/SwiftUI/View/fileExporterFilenameLabel(_:)), and [`fileDialogCustomizationID(_:)`](/documentation/SwiftUI/View/fileDialogCustomizationID(_:)). --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)