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That's a difficult question. The download page for that version of QuarkXpress
says it is compatible from Snow Leopard up to Mavericks. Sierra 10.12 ? that's just questionable.
But you can try it.
This page confirms that there is no support for installing QX versions from 3 through 10 (including 9.x) on 10.12... you need to update to the 2016 version, they advise:
But, being unsupported by Quark themselves does not mean it *cannot* run on 10.12... this page speaks of matter pertinent to your question:
and also may link to useful suggestions ... it says 9.5.4 'is' running on 10.11.
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