title: Xamarin Forms: Open downloaded file in default Android/iOS application
body: <p>I am using Xamarin Forms. I would like to download jpg file (it is done) and then open that jpg in default application on Android/iOS (opening photo browser with this photo). Of course photo is single example, I would like to open any file in default application.</p>
  
  <p>I found several solutions native-only but my application is designed to be cross-platform. I though that I can use Launcher from Xamarin.Essentials package but apparently I can't.</p>
  
  <p>How to achieve this?</p>