Remove/Replace unwanted char

Hello,

How can I remove or replace unwanted char from the description?

Depending on which program or browser you open the xml file shows the unwanted character in one way or another. (check test.xml)

Example:

INI: radiotimes.com.ini

site_id="2544"

...

 <programme start="20180531103300 +0000" stop="20180531104500 +0000" channel="1848.gibsat.com">
    <title lang="en">Hanazuki</title>
    <desc lang="en">A Moonflower named Kiazuki crash lands her Spacesurfer on Hanazuki?’s moon, and Hanazuki embraces this chance to finally make a friend more like herself.(n)</desc>
    <category lang="en">Childrens</category>
    <icon src="http://www.webgrabplus.com/%3Ca%20href%3D"http://images.radiotimes.com/assets/images/holding/tv.png?quality=60&amp;mode=crop&amp;width=130&amp;height=100&amp;404=tv">http://images.radiotimes.com/assets/images/holding/tv.png?quality=60&amp..." />
    <episode-num system="onscreen">S27 E7</episode-num>
  </programme>
  <programme start="20180531104500 +0000" stop="20180531110000 +0000" channel="1848.gibsat.com">
    <title lang="en">Hanazuki</title>
    <desc lang="en">Initially thrilled to hear that Chicken Plant is having a baby, Hanazuki’?s surprised to discover that everyone else finds this news terrifying.(n)</desc>
    <category lang="en">Childrens</category>
    <icon src="http://www.webgrabplus.com/%3Ca%20href%3D"http://images.radiotimes.com/assets/images/holding/tv.png?quality=60&amp;mode=crop&amp;width=130&amp;height=100&amp;404=tv">http://images.radiotimes.com/assets/images/holding/tv.png?quality=60&amp..." />
    <episode-num system="onscreen">S27 E8</episode-num>
  </programme>
  <programme start="20180531110000 +0000" stop="20180531111500 +0000" channel="1848.gibsat.com">
    <title lang="en">Hanazuki</title>
    <desc lang="en">Hanazuki can?’t get her friend Sleepy Unicorn to tell her why he seems so unsettled since Kiazuki arrived, but then his dreams begin to give him away.(n)</desc>
    <category lang="en">Childrens</category>
    <icon src="http://www.webgrabplus.com/%3Ca%20href%3D"http://images.radiotimes.com/assets/images/holding/tv.png?quality=60&amp;mode=crop&amp;width=130&amp;height=100&amp;404=tv">http://images.radiotimes.com/assets/images/holding/tv.png?quality=60&amp..." />
    <episode-num system="onscreen">S27 E9</episode-num>
  </programme>

...

Thanks

JuanF