How do you merge a document in Neo Office with a CSV file to get personalized letters?
The OpenOffice wiki has instructions on how to do this, and since NeoOffice is the Mac version of OpenOffice, it stands to reason that this would also work in NeoOffice. However, there are no guarantees.
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OpenOffice wiki instructions: http://wiki.services.openoffice.org/wiki/Documentation/How_Tos/Creating_Mail_Merge_Documents_From_Text/CSV_or_Spreadsheets