expression.DataFileName
expression Required. An expression that returns a WebCommandButton object.
Example
This example sets Publisher to process Web form data by saving it to a comma-delimited text file on the same Web server as the form is stored.
Sub WebDataFile()
With ThisDocument.Pages(1).Shapes(1).WebCommandButton
.DataRetrievalMethod = pbSubmitDataRetrievalSaveOnServer
.DataFileFormat = pbSubmitDataFormatCSV
.DataFileName = "WebFormData.txt"
End With
End Sub