# LaunchFile(Folder, string, bool)

> Launches the default app associated with specified file.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine.WSA](/engine/6000.3/script-reference/unityengine/wsa.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public static void LaunchFile(Folder folder, string relativeFilePath, bool showWarning)
```

### Parameters

**** (\[Folder]\(/engine/6000.3/script-reference/unityengine/wsa/folder)): Folder type where the file is located.**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): Relative file path inside the specified folder.**** (\[bool]\(https\://learn.microsoft.com/dotnet/api/system.boolean)): Shows user a warning that application will be switched.

### Remarks

Note: if the application associated with file is the same as the one performing the launch, Windows won't open a new application, instead it will simply invoke OnActivated event in App.xaml.\[cs/cpp] file.