Press Alt+F9 to toggle on the display of field codes and you will see
{ MERGEFIELD fieldname }
Add \* charformat inside the closing } so that the field becomes
{ MERGEFIELD fieldname \* charformat }
and apply the formatting to the M (or the whole) of MERGEFIELD.

Signature
Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP
>I have data in an Excel 2003 spreadsheet that is formatted in a particular
>font (Times 12pt). I am trying to mail merge that data into a Word 2003
[quoted text clipped - 16 lines]
>
> Chuck