Problem importing Word File

I have tried to import a folder from my harddisk containing three word-files (MS Word for Mac 2004). Two files are imported one is not. I tried to import the file manually via the import funciton of DevonThink Pro but this does not work either. Any ideas?

Are you able to open the file with TextEdit or to display it via QuickLook? What’s the name & extension of the file?