Microsoft Knowledgebase article 294933 explains how to use the Microsoft Office Application Recovery.
This tool provides you with a way to potentially recover data from an Office program that stops responding (hangs). If an Office program stops responding during your work session, you are no longer forced to terminate the program in Windows Task Manager and therefore lose any unsaved data.
When you start the program, it shows you a list of Office applications that are running. You can then choose to “recover” the application.
I had never heard of this until today, and haven’t tried it, but it sound interesting…