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 # Property FilenameExtension

 Last update: 19.06.2026 

Namespace: [Phoenix.ComponentPlugInSDK.Models](Phoenix.ComponentPlugInSDK.Models.md)  
Assembly: Phoenix.ComponentPlugInSDK.dll

## FilenameExtension

The filename extension to use in the PACZ, including the dot.

```csharp
public abstract string FilenameExtension { get; }


```

### Property Value

[string](https://learn.microsoft.com/dotnet/api/system.string)