<!--
{
  "availability" : [
    "iOS: 14.0.0 - 27.2.0",
    "iPadOS: 14.0.0 - 27.2.0",
    "macCatalyst: 14.0.0 - 27.2.0",
    "macOS: 11.0.0 - 27.2.0",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "SwiftUI",
  "identifier" : "/documentation/SwiftUI/FileDocumentWriteConfiguration",
  "metadataVersion" : "0.1.0",
  "role" : "Structure",
  "symbol" : {
    "kind" : "Structure",
    "modules" : [
      "SwiftUI"
    ],
    "preciseIdentifier" : "s:7SwiftUI30FileDocumentWriteConfigurationV"
  },
  "title" : "FileDocumentWriteConfiguration"
}
-->

# FileDocumentWriteConfiguration

The configuration for serializing file contents.

```
struct FileDocumentWriteConfiguration
```

## Topics

### Writing the content

[`let contentType: UTType`](/documentation/SwiftUI/FileDocumentWriteConfiguration/contentType)

The expected uniform type of the file contents.

[`let existingFile: FileWrapper?`](/documentation/SwiftUI/FileDocumentWriteConfiguration/existingFile)

The file wrapper containing the current document content.
`nil` if the document is unsaved.


---

Copyright &copy; 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)