TextFileCommaDelimiter Property [Excel 2003 VBA Language Reference]
True if the comma is the delimiter when you import a text file into a query table. False if you want to use some other character as the delimiter. The default value is False. Read/write Boolean.
Use this property only when your query table is based on data from a text file (with the QueryType property set to xlTextImport), and only if the value of the TextFileParseType property is xlDelimited.
This example sets the comma to be the delimiter in the query table on the first worksheet in the first workbook, and then it refreshes the query table.
Set shFirstQtr = Workbooks(1).Worksheets(1) Set qtQtrResults = shFirstQtr.QueryTables _ .Add(Connection := "TEXT;C:\My Documents\19980331.txt", _ Destination := shFirstQtr.Cells(1, 1)) With qtQtrResults .TextFileParseType = xlDelimited .TextFileCommaDelimiter = True .Refresh End With