Need a help to decompress dat file from soap OR lineage ROM

[naga ravi 259]

I'm a big fan for Nubia ui
I was trying to Port a Nubia Z11 stock ROM to letv max 2 I'm stuck at extracting system_new.dat file from lineage 14.1 ROM & aosp 7.1.2 i tried with many files but won't succeed
Any one know the extracting process tell me im waiting

 

[ThE_MarD]

Heyyo, I'm unsure if you're on Windows but this is what I did

https://xdaforums.com/android/help/tut-how-to-convert-dat-br-to-dat-t3723926

I know this says marshmallow but it works up to Oreo as well

https://xdaforums.com/android/help/extract-dat-marshmallow-lollipop-easily-t3334117