---
title: PropertyListSerialization.PropertyListFormat.openStep
framework: foundation
role: symbol
role_heading: Case
path: foundation/propertylistserialization/propertylistformat/openstep
---

# PropertyListSerialization.PropertyListFormat.openStep

Specifies the ASCII property list format inherited from the OpenStep APIs.

## Declaration

```swift
case openStep
```

## Discussion

Discussion important: The NSPropertyListOpenStepFormat constant is not supported for writing. It can be used only for reading old-style property lists.

## See Also

### Constants

- [PropertyListSerialization.PropertyListFormat.xml](foundation/propertylistserialization/propertylistformat/xml.md)
- [PropertyListSerialization.PropertyListFormat.binary](foundation/propertylistserialization/propertylistformat/binary.md)