This software fixes the "Error on line 2" message that occurs when attempting to burn a feed from feedburner.com, specifically the error related to the processing instruction target matching "[xX][mM] [lL]" not being allowed.

Released in 2011 with version 1, the plugin is authored by Flyaga Li, who is reachable for support via email at [email protected]. This plugin requires at least WordPress 2.5 and has been tested up to WordPress 3.01.
Fix RSS Feed Plugin has received several updates since its release. Version 1.01 was released on February 4th, 2009, and it fixed some errors as well as added backup files before changing PHP files. Version 1.02 followed on February 16th, 2009, and addressed other issues. Version 1.03 was released on May 24th, 2009, and added a helpful "check WordPress RSS feed error" button. Version 2.0 was released on February 12th, 2010, and added backup and restore functionality. Version 3.0 followed on September 19th, 2010, and allowed users to modify errors in wp-blog-header.php directly while using a simplified method. The latest version is 3.1, which was released on August 10th, 2011, and now only opens the donation URL during first usage.
Installation of Fix RSS Feed Plugin is a breeze. Simply upload it to your plugins folder, which is usually located at `wp-content/plugins/`, and unzip the file to create a `wp-content/plugins/fix-rss-feed/` directory. Activate the plugin on the plugin screen, and you are done.
Version 3.1: 2011-08-10 release v3.1, only open Donate url in first usage time, thanks for Colin Reynolds’s advice.