I get the following exception when trying to open the attached document with Aspose:
Unable to cast object of type 'Aspose.Words.Fields.FieldSeparator' to type 'Aspose.Words.Fields.FieldStart'.
The document can be opened by Word2007 without any exceptions.
This document is a result of applying MailMerge.Execute from Aspose. The original document can be opened by both Word and Aspose.