About offline download xcode ios documentation, help! ~ ~ ~ ~

See online tutorials and documentation under the ios, but xar format that is then input terminal: sudo xar-xf com.apple.whateverxxxx.xar can extract, but I tried many times, and each time failed , I use black 10.6.3 Apple, will be how to extract. xar documents? Thank you ~ ~ ~ ~
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The reply was deleted at the moderator 2011-12-05 08:34:42

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Without directly in xcode in the line.
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How no one ah?

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How directly under ah? No, under the guidance of, the line does not?

reference to the second floor kanglu02 reply:

in xcode directly under where not on the line

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prefenced-> download
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xar format?
Never met;