procedure TForm1.Button1Click(Sender: TObject);
{©Drkb v.3(2007): <a href="http://www.drkb.ru" title="www.drkb.ru">www.drkb.ru</a>,
 ®Vit (Vitaly Nevzorov) - nevzorov@yahoo.com}
 var t:TFileStream;
begin
 t:=TFileStream.create('c:\myfilename.txt', fmCreate or fmOpenWrite);
 t.Size:=0;
 RxRichEdit1.Lines.SaveToStream(t);
 t.free;
end;