title: How to add custom mime type?
body: <p><strong>What I want:</strong> To be able to send my custom file by mail and import it with my application from the preview button in GMail or when opening it in a file browser.</p>
  
  <p><strong>What I know:</strong> I've read a lot of custom mime type handlers, that android doesn't care about file extension etc., but how to create the mime type for my custom file?</p>
  
  <p><strong>The question:</strong> Do I need to be a content provider? I just want to import files (from backup) not provide anything. I've seen people having handlers for "application/abc" saying it's working fine, but how to add that connection for my file "myFile.abc" and the mime type?</p>
  
  <p>Some direction how to register/map custom mime types would be appreciated! :)</p>