title: How to initialise UIDocumentPickerViewController with all type of UTIs
body: <p>I want to open UIDocumentPickerViewController and It should allow user to select all type of files. I tried to mention all UTIs in UIDocumentPickerViewController init method still couldnt find valid UTIs for some of files like rar,Visio files,mpp,mpt</p>
  
  <pre><code>UIDocumentPickerViewController *documentPicker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes:[MingleUtils allowedUTIs] inMode:UIDocumentPickerModeImport];
  </code></pre>
  
  <p>and</p>
  
  <pre><code>+(NSArray*)allowedUTIs{
      return @[@"public.data",@"public.content",@"public.audiovisual-content",@"public.movie",@"public.audiovisual-content",@"public.video",@"public.audio",@"public.text",@"public.data",@"public.zip-archive",@"com.pkware.zip-archive",@"public.composite-content",@"public.text"];
  }
  </code></pre>