Undestanding Microsoft Word 4 binary format and early versions

Today reading Harald Welte’s blog I discovered here is creating a script to extract ASN1 definition from GSM documentation written on MSWord4.

Then he discovered a web site with MS Word 4 binary format specification:

He noticed none MS Word released lasts 10 years could open it. Then I think it could be very interesting adding this support on LibreOffice/OpenOffice.