How To Import Text File From Code

I am using this code to attempt an import of a fixed width .csv text file:

Private Sub cbImport_Click()
    Dim strFileName As String
    Dim strSQL As String
    Dim strImportSpec As String
   
    If IsNull(Me.txtFile) = True Then
        MsgBox "You must find a file for import!", vbExclamation, "File Required"
        Exit Sub
    End If

    strSQL = "DELETE GL_ImportTable.* FROM GL_ImportTable"
    DoCmd.RunSQL strSQL

    strFileName = Trim(Me.txtFile)
    strImportSpec = "Import_GL"
   
    DoCmd.TransferText acImportFixed, "Import_GL", "GL_ImportTable", strFileName, True
       

End Sub

I have used it with both a variable and the string shown for the Specification name and in each case I get a message that says:

"The text file specification "Import_GL" does not exist."

Obviously it does, and I have even copied the name right out of the specification list into the code.

Any help will be appreciated.

Thanks.