title: Where is DataTable class in UWP?
body: <p>I knew the <strong>System.Data</strong> namespace was missing from WinRT so my hope for programming based on DataTable or DataSet for WinRT was never raised. Now I see the System.Data (and System.Data.Common) namespace in UWP, but DataTable or DataSet is never to be found. Or, am I missing something, or need a different namespace?</p>
  
  <p>More specifically, if I used <strong>System.Data.DataTable</strong> and <strong>Microsoft.Office.Interop.Excel.DataTable</strong> in the past, what do I need to do to migrate the old code to UWP?</p>