Everything you write in wordpress is automatically available in your RSS feed.
Perhaps you need to be more specific about your needs?
Yes, I want to write news messages manually.
I still don’t understand what you want to do. Can you please fully explain what you want to do, and how wordpress fits into it?
Maybe my problem has no relation to WordPress. I just want to have a program where I will be able to write news messges in my own way. So, I ask you advise me such tool.
ok, well, wordpress can do that. you write up a post, hit a publish button, and it will be available on an rss feed as well as a web page. I’m not sure what you mean by ‘write news messages in my own way’, but the whole point of wordpress is personal publishing, and I would think this is what you want.