send mail with attachment body

Use this code to send an email to me and work with me. What I want now is to send a file attachment also with the message.

  var email = new Intent(Android.Content.Intent.ActionSend);
            email.PutExtra(Android.Content.Intent.ExtraEmail, new string[] {
            "susairajs@outlook.com",
            "susairajs18@gmail.com"
        });
            email.PutExtra(Android.Content.Intent.ExtraCc, new string[] {
            "susairajs18@live.com"
        });
            email.PutExtra(Android.Content.Intent.ExtraSubject, "Hello Xamarin");
            email.PutExtra(Android.Content.Intent.ExtraText, "Hello Xamarin This is My Test Mail...!");
            email.SetType("message/rfc822");
            StartActivity(email);

sample.txt in Assets folder. Set the Build Action to AndroidAsset.

The Path of the txt file.

//android_asset/sample.txt

Usage:

btnSend.Click += delegate
        {
            Android.Net.Uri file = Android.Net.Uri.FromFile(new 
Java.IO.File("//android_asset/sample.txt"));
            var email = new Intent(Android.Content.Intent.ActionSend);
            email.PutExtra(Android.Content.Intent.ExtraEmail,
            new string[] { "xxxxxx@xxxxx.com" });
            //email.PutExtra(Android.Content.Intent.ExtraCc,
            //new string[] { "something@gmail.com" });
            email.PutExtra(Android.Content.Intent.ExtraSubject, "Awesome File");
            email.PutExtra(Android.Content.Intent.ExtraText, "See attached file");
            email.PutExtra(Android.Content.Intent.ExtraStream, file);
            email.SetType("message/rfc822");
            StartActivity(Intent.CreateChooser(email, "Send email..."));
        };