Hi XML tree is a complex as they are hierarchical and you most likely want a flat structure for easier access of the data. I just wrapped up the second article of this yesterday, and the code for this is available at GitHub link included in the article. http://max.bback.se/index.php/2018/06/30/xml-to-tables-csv-with-nifi-and-groovy-part-2-of-2/ The article describe the problem and is providing an implementation for the conversion from XML to CSV by flattening out the XML files, my example XML is flattened out into 4 tables, all depends on how many branches you have that is of the type 1 to many. /Max
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