Currently Scratch projects can not be exported as .fla or .swf, but the Scratch team may add this feature is Scratch 2.0. You can currently export a Scratch project as .exe(Windows), .app(Mac OS X), and .jar(Java) using some tools created by Scratchers. See this article on the Scratch Wiki for more information.
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import it into BYOB then compile it.
(i hate the 60 second rule)
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