PvK has generously taken the time to port
catgod, everybody's favorite pretender file viewer, to Windows. Three cheers for PvK!
Download
catgod.zip. Yup, still command-line only... but Arralen is working on a GUI.
Mac OS and
Linux binaries are still available too.
Once you've downloaded it, change to your pretender directory (usually dominions3/savedgames/newlords), and start looking at files.
catgod *.2h
will show them all.