Kiwix will not if Kiwix doesn't have the code to fall back to other languages than English.
Oh, that's pretty cool. Do you have a reference to the fallback behaviour you can share?
The best I can share with you is: https://developer.mozilla.org/En/How_to_enable_locale_switching_in_a_XULRunner_application
... but this still does not answer exactly to your question. The best choice is: you check it out (by testing) yourself. If something goes wrong, please open a bug report at http://reportabug.kiwix.org Kelson (talk) 18:57, 27 December 2011 (UTC)