This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Which library are you using for reading doc files - Apache POI? If so, that doesn't support the XML-based Office files yet. You could try the beta version of POI, which does support DOCX to a certain degree.