Select column with value *** of Excel

Good morning, friends!

I need some help.

I'm doing a "Select" from an Excel spreadsheet in VB.Net to import the data into the bank however a column is not bringing the data properly. This column has both numbers as * 's; when they are numbers it brings the values, but when they are 's (, , * , ****) brings {}, I would like the whole column to return as String. Is it possible?

- Method that imports spreadsheet

Dim dtbSheet As New DataTable
    Dim wrkConnectionString As String = String.Format(CONNECTION_STRING_OLEDB_EXCEL, pPathFile)
    Dim wrkSQL As String = String.Format("SELECT * FROM [{0}$]", pSheet)

    'Intancia conexão
    Dim wrkConnection As OleDbConnection = Nothing
    Dim wrkCmd As OleDbCommand = Nothing
    Dim wrkDa As OleDbDataAdapter = Nothing

    Try
        wrkConnection = New OleDbConnection(wrkConnectionString)
        wrkCmd = New OleDbCommand(wrkSQL, wrkConnection)
        wrkDa = New OleDbDataAdapter(wrkCmd)
        wrkDa.Fill(dtbSheet)
    Finally
        If wrkConnection IsNot Nothing AndAlso wrkConnection.State = ConnectionState.Open Then wrkConnection.Close()
    End Try

    Return dtbSheet

- Column example