predict a value from an .arff of weka .net in vs wf

Question

I need to predict a value from an .arff of weka using visual studio windows form. the arff is like this(this is not the arff, this is an example of how it looks like):

@relation Inf
@attribute ano real
@attribute matricula real
@data
1,100
2,110
3,120
4,130
5,?

and i nned an example code. please