How to reverse engineer binary file formats for compatibility purposes

Question

I am working of a file preparation software to enable translators work easily and efficiently on a wide range of file formats.

As far as text-based formats (xml, ph

Answer 1

Maybe you could pick a cheaper application which has import features for QuarkXPress. For example InDesign should be able to read Quark documents. Then use the importing application to export to whatever format you need - maybe with a help of plug-in.