The linked zip archive throws errors when I try to open it in various programs: "The archive is either in unknown format or damaged" "Cannot open file: it does not appear to be a valid archive." Pjrich (talk) 19:01, 20 August 2012 (UTC)
Topic on Extension talk:WantedPagesFromNS
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The archive is a 7zip archive. It should be named .7z. It does not appear to work as of 1.20.2 anyway.