Regular Expression - <xop:Include href=""/>

Hi all, I am new to the community so forgive me if this is the wrong place to ask this question.

What I am trying to do is have a regular expression between the double quotes <xop:Include href=""/> that will Find & Replace the dynamically generated URL between the double quotes in the PostXML. I have been unsuccessful thus far. Any assistance would be helpful.

Regex with xml/html is a tricky oneā€¦ Probably better to use an xpath to get the value out?