You can use Word's Catalogue/Directory Mailmerge facility for this (the terminology depends on the Word version). To see how to do so with any mailmerge data source supported by Word, check out my Microsoft Word Catalogue/Directory Mailmerge Tutorial at:
http://windowssecrets.com/forums/sho...ngs-(2000-2010)
or
http://www.gmayor.com/Zips/Catalogue%20Mailmerge.zip
The tutorial covers everything from list creation to the insertion & calculation of values in multi-record tables in letters. Do read the tutorial before trying to use the mailmerge document included with it.
For some worked examples, see the attachment to the posts at:
https://www.msofficeforums.com/mail-...html#post23345
https://www.msofficeforums.com/mail-...html#post30327
Alternatively, you may want to try one of the Many-to-One Mail Merge add-ins, from:
Graham Mayor at
http://www.gmayor.com/ManyToOne.htm; or
Doug Robbins at
https://skydrive.live.com/?cid=5aedc...615E886B%21566