I suppose the first question is how did the GEDCOM file get into Word format in the first place? A GEDCOM file is more than just .ged file extension, the contents are structured in a very particular way so that they can be read by the import process. It would be possible to create one manually, but it's not something I would want to do. So, if the file didn't originate as a GEDCOM export from some program, it probably isn't a GEDCOM file. Can you give us any more background on how it came to be?