Exports commenter's data in csv format for individual post.
This plugin exports data of commenter, which may include comment post id, comment date, name, email, website etc. The data will be exported in the form of csv file.
This plugin is compatible with Comment Attachment plugin ( http://wordpress.org/plugins/comment-attachment/ ) so exported csv file can also have attachment url in it.
It has extensive option in dashboard setting page, you can select which fields will be present in csv file. It also lists posts so that you can export csv file right from setting page.
Plugin follows all the codex guidelines in its code.