See The Excel section in
http://www.gmayor.dsl.pipex.com/mail_merge_labels_with_word_xp.htm
and also http://www.gmayor.dsl.pipex.com/formatting_word_fields.htm

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Graham Mayor - Word MVP
E-mail gmayor@mvps.org
Web site www.gmayor.dsl.pipex.com
Word MVP web site www.mvps.org/word
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> Help! When I do a mail merge with addresses from an Excel
> database to Word, sometimes the zip code field shows up
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>
> Thanks