How to convert log from XML using XSLT?

Question

Notepad++

There is a log file about 300 MB long. It contains listings of XML files with root node . Using the Notepad++ editor and the XML Tools plugin, I'm trying to perform searches using XSLT transformations. I can process only one ORDER tag. If I substitute logs with several root nodes, I get an error. How it is possible to force to process a broad gull a file having passed on all root tags?

Answer 1

As far as I know, there can only be one root element in xml.
Wrong but working solution:
Wrap all root elements into one new root element in notepad++ by hand and process properly.
Good solution:
Generate good xml