Reverse Engineering Project - open to bidding

For a publication library Win32 app, I am looking to extract data from its proprietary and undocumented file format. * It is multilingual and precedes Unicode, most likely compressed. * The individual documents are search indexed (indices in separate files). * They are sorted into a hierarchy: Publication (file-level) > Chapter > Content. * Some publications are magazines, their hierarchy is: Publication (file-level) > Year > Issue > Chapter > Content. * The documents are interconnected with hyperlinks. * Few publications contain images, most is formatted text. Source: I will provide you with the entire library viewer app including all of its publication files (1+GB). Deliverables: * The tool you develop to read and convert the files to the following format. * I can work from a set of legible, interconnected HTML (and JPG) files with their TOC files, sorted into nested folders. * All formatting, links and footnotes need to be retained. * Indices should be on a separate file per publication, using HTML anchor tags < a id="uniqueID" > in the content files. * I should be able to use the same tool on more files of the same specification. * Delivering a command line tool for Win32, x64, Linux or macOS is fine.