There is no way to tell in advance what type of data a List holds, it could be anything. You need to cast the object to the correct type first then read the values.
B4X:
Dim StrArr() as String = values.get(0)
For each S As String In Strarr
Log(S)
Next
'Or
Log(StrArr(0))
Log(StrArr(1))
'etc.