You can't edit an <tt>.xnb</tt> file itself, you need to edit the file that's inside it. Pulling out that inner file is called ''unpacking'', and putting it back is called ''packing''. Here's how to do it: | You can't edit an <tt>.xnb</tt> file itself, you need to edit the file that's inside it. Pulling out that inner file is called ''unpacking'', and putting it back is called ''packing''. Here's how to do it: |