XML: Process large data

Question

What XML-parser do you recommend for the following purpose:

The XML-file (formatted, containing whitespaces) is around 800 MB. It mostly contains three types of tag

Answer 1

"I could split it into three files"

Try XmlSplit. it is a commandline program with options for specifying where to split by element, attribute, etc. Google and you should find it. Very fast too.