Function to unformat HTML code

I start to build a report with CF Report Builder (8) and at some point, I realize that one of the field I need to display have HTML code (e.g.: <p>, <b>, etc...). The fact is that this field is using a Rich Editor (FCKEditor) when input the text. Until now, I did not have any problem with this but it displays all the code in the report (in the CF Report Builder) and it is not really human-friendly. I saw that it is a function to transform basic text in HTML but is it something to do the inverse?

Thank's for any help!