This feature has been deprecated. Formatted text is now always exported with the formatting intact.
The data-export feature now has an option for controlling how HTML-formatted text is exported. You can find it on the data-export page (Tools -> Data Export) right above the Create Report button:
So if you’ve set up any of your forms (submission, role, or review) to include a formatted-text field, you can now tell the data-export feature whether you want that text exported as formatted text (with HTML tags) or as unformatted text (without HTML tags).
For example, let’s say you have a field in your Presenter role form for the presenter’s bio. You’ve set up the field so the user can format the text, but you don’t want any of that formatting when you export the bio. Now, all you have to do is check the box at the bottom of the data-export feature and voilà—all of the HTML code is stripped out!