The RSS Forum Charter [webmasterworld.com] discourages discussion of RSS software tools as we used to have some problems with spam/promotion of this type of software. I would like to make an exception in this thread as the heyday of RSS editor software is well past us.
Do you have any experience with any good stand-alone RSS feed editors?
There are editing programs that let you put your data into them and they spew out properly formatted RSS or Atom feeds in XML format. Some of them allow for fancy HTML formatting within your posts. Some also let you connect directly to your FTP server to edit your feed live.