# FILE_OPEN_EXCLUSIVE

`import { FILE_OPEN_EXCLUSIVE } from "destack:fs/binding";`

Fail when the created entry already exists.

```ds title="FILE_OPEN_EXCLUSIVE"
const FILE_OPEN_EXCLUSIVE: FileOpenFlags
```

[language/library/src/fs/binding/file.ds:24](https://github.com/destack-sh/destack/blob/main/language/library/src/fs/binding/file.ds#L24)