See the "Convert Labels into a Data File" item on fellow MVP Graham Mayor's
website at:
http://www.gmayor.com/convert_labels_into_mail_merge.htm
or "How to convert addresses into a Mail Merge Data Source" at:
http://word.mvps.org/FAQs/MailMerge/ConvertAdrsToDatafile.htm

Signature
Please respond to the Newsgroup for the benefit of others who may be
interested. Questions sent directly to me will only be answered on a paid
consulting basis.
Hope this helps,
Doug Robbins - Word MVP
>I would like to use a data source for a mail merge but I don't know what
> program created it. I don't want to retype the information. Any ideas?