Here is a sample-code in Powershell:
$xmlString = @"
value1value2
value3value4
"@
$sr =[System.IO.StringReader]($xmlString)
$dataset =[System.Data.DataSet]::new()
$null = $dataset.ReadXml($sr)
and this is the result of $dataset.tables:
c1 c2
-- --
value1 value2
value3 value4