Instead of hunting for a risky "Key" for a 2010 app, consider these legal pathways:

There are third-party plugins like Markzware Q2ID that can convert Quark 8.5 files directly into InDesign.

QuarkXPress 8.5 was a significant free update for existing Version 8 users, released on . It aimed to improve stability and modernize file compatibility during that era. Key Features :