I'm told from MS friends that there are still files with the intact 1987 changelog in Word; as well as workarounds for dot matrix printers that were released 40

I'm told from MS friends that there are still files with the intact 1987 changelog in Word; as well as workarounds for dot matrix printers that were released 40+ years ago. Also, the Office codebase is significantly larger than Windows (and has been for a while), that was surprising to me.