---
title: systemAppend
framework: system
role: symbol
role_heading: Type Property
path: system/fileflags/systemappend
---

# systemAppend

Writes to the file may only append.

## Declaration

```swift
static var systemAppend: FileFlags { get }
```

## Discussion

Discussion The corresponding C constant is SF_APPEND. note: This flag may only be changed by the superuser.