How to read and write XML file with a lot of data?

[limingkun]

Hi, I need to read and write a XML file with the following format:

<DataXML>
<Value ElemNum=¡±n1¡±>
x1 x2 x3 ¡Â*. xn1
</Value>

<Value ElemNum = ¡°n2¡±>
y1 y2 y3 ¡Â* yn2
</Value>
</DataXML>

xi and yi are float number, n1 and n2 are very large, can be more than 10000. Can any xml parser do it and how to do it?

Thanks.