Show More Than 5 Recent Posts From your Blogger Rss Feed

How To get post description or author name and post date to be shown with title of post altogether if you are using recent post widget for your blog and also show more that 5 posts as blogger feeds restrict you to show upto only 5 posts,but with feedburner you can show all of above with any number of posts you want to show up in your widget.If you just want simple script of codes to extract any