What delimiters are you using? I read the following information about the method:

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OpenDataSource Method
Syntax:

expression.OpenDataSource(Name, Format, ConfirmConversions, ReadOnly, LinkToSource, AddToRecentFiles, PasswordDocument, PasswordTemplate, Revert, WritePasswordDocument, WritePasswordTemplate, Connection, SQLStatement, SQLStatement1)

expression Required. An expression that returns a MailMerge object.

Name Required String. The data source file name. You can specify a Microsoft Query (.qry) file instead of specifying a data source, a connection string, and a query string.

Format Optional Variant. The file converter used to open the document. Can be one of the following WdOpenFormat constants: wdOpenFormatAllWord, wdOpenFormatAuto, wdOpenFormatDocument, wdOpenFormatEncodedText, wdOpenFormatRTF, wdOpenFormatTemplate, wdOpenFormatText, wdOpenFormatUnicodeText, or wdOpenFormatWebPages. The default value is wdOpenFormatAuto.

To specify an external file format, use the OpenFormat property with a FileConverter object to determine the value to use with this argument.

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Can you tell me the format of the file you are using (Your node mentions "|" and "~" but I wasn't sure that this was the case)? I'll then try to create a working example.

C-.