VBA Macro to load .txt data in various spreadsheets at the end of each file (accumulating)

I have never used ADO, actually I am new to excel VBA... I found a code with ADO, maybe this can help me?

Public Function Read_Text_File() As ADODB.Recordset

      Dim rs As ADODB.Recordset
      Set rs = New ADODB.Recordset
      Dim conn As ADODB.Connection
      Set conn = New ADODB.Connection
      conn.Open "DRIVER={Microsoft Text Driver (*.txt; *.csv)};" & _
                  "DBQ=" & App.Path & ";", "", ""

      rs.Open "select * from [test#txt]", conn, adOpenStatic, _
                  adLockReadOnly, adCmdText
      Set Read_Text_File = rs
      Set rs = Nothing
      Set conn = Nothing
End Function