Parsing html file in nifi

[#1]

How can I parsing html file in nifi?
I need remove the first two <table> and take data from every <th> in <tr>.
Which processors I need to use and how?
Example of a file structure on pic.

[#2]

@Vladislav Shcherbakov

I think using InvokeScriptedProcessor may be a good option on this case. Please take a look here:

http://funnifi.blogspot.com/2016/02/invokescriptedprocessor-hello-world.html

Also there is a similar article that you could review here:

https://community.hortonworks.com/articles/193822/parsing-web-pages-for-images-with-apache-nifi.html

HTH

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