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# NSDocument.ChangeType.changeReadOtherContents

The document has been initialized with the contents of a file or file package other than the one whose location is in the `fileURL` property, and therefore can’t possibly be synchronized with its persistent representation.

```
case changeReadOtherContents
```

## Discussion

For example, [`init(for:withContentsOf:ofType:)`](/documentation/AppKit/NSDocument/init(for:withContentsOf:ofType:)) passes this value when the two passed-in URLs are not equal to indicate that an autosaved document is being reopened.

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