Do one of the following:
Specify fonts to substitute when converting files
Word does not replace the name of the missing font; it only changes how the font is displayed on the screen and printed by substituting a font that is available on your system. If the substituted font is listed as "Default," read the message near the bottom of the dialog box to see which font will be substituted.
Customize Word to work with a converted document
Note Changing the options affects only the display of a document while you're working with it in Microsoft Word. It does not permanently change any formatting in the document. If you later convert the document back to its original file format, the formatting appears as it did before you converted it to Word.