Hi
Thanks for your request. Could you please attach your template document for testing? Also please read the following article to learn how to prepare template document.
http://www.aspose.com/documentation/file-format-components/aspose.words-for-.net-and-java/preparing-a-document.html
Also please see the following code and attached documents.
//Create DataTable
DataTable info = new DataTable("Info");
//Add columns
info.Columns.Add("FirstName");
info.Columns.Add("LastName");
info.Columns.Add("Company");
//Add rows
info.Rows.Add(new object[] { "Alexey", "Noskov", "Aspose" });
info.Rows.Add(new object[] { "Den", "Michel", "Nicon" });
//Open template document
Document doc = new Document(@"Test153\in.doc");
//Execute maeil merge
doc.MailMerge.ExecuteWithRegions(info);
//Save output document
doc.Save(@"Test153\out.doc");
Best regards.
Alexey Noskov
Developer/Technical Support
Aspose Auckland Team