2.1.1760 Part 4 Section 18.104.22.168, convMailMergeEsc (Treat Backslash Quotation Delimiter as Two Quotation Marks)
a. The standard states that applications shall interpret delimiters composed of a backslash and quotation mark (\") as two quotation marks ("").
Word interprets delimiters composed of a backslash and quotation mark (\") as a single quotation mark (").
b. The standard does not state any constraints for the usage of this property.
Word only uses this property in the document that serves as the external data source to be a WordprocessingML document through an ODSO connection.