Attached rss-content.xml is single-line xml - rss from Picasa web album with size 348K.
After attempt to open it (double click / open in xml editor) whole RHDS freezes and must be killed.
Upstream Bugzilla: https://bugs.eclipse.org/bugs/show_bug.cgi?id=498328
Closing, I have tried it with CRS 12.18.0.GA and I was able to open the file with one issue - it slowed CRS, but after format, it behaves correctly.