XF 1.1 How do I delete everything expect ..... ?

[optrex]

I want to clear down my forum content to the point where only the forum structure (forums and categories), group permissions and admin account is left. I would like to retain skins and template edits.

I would like to remove all attachments, posts, topics, signatures, avatars etc - so that its my forum as it is but with no content and no members.

What do I need to do please?

 

[Jake Bunce]

This is a bad thing to do in my opinion, but it has been done:

http://xenforo.com/community/threads/import-question-second-import-over-old-one.16663/#post-311819