xmllint does a great job if you're using linux
Otherwise save the text as something.xml and open it with the browser.
In the example you have some tags that are never closed: Company ConfNr Phone
aquilax
Junior Poster in Training
73 posts since Jul 2010
Reputation Points: 18
Solved Threads: 11
Skill Endorsements: 0
Checkout Fiddler and/or SoapUI.
pritaeas
Posting Prodigy
9,287 posts since Jul 2006
Reputation Points: 1,173
Solved Threads: 1,458
Skill Endorsements: 86
aquilax
Junior Poster in Training
73 posts since Jul 2010
Reputation Points: 18
Solved Threads: 11
Skill Endorsements: 0