its finally the extras folder

Data/Extras/.nkit.iso to .iso Converter/Dats/Custom/GameCube/Custom.dat

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+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE datafile PUBLIC "-//Logiqx//DTD ROM Management Datafile//EN" "http://www.logiqx.com/Dats/datafile.dtd"[]>
+<datafile>
+  <header>
+  
+    <name>Custom Dat</name>
+
+    <description>Created by NKit</description>
+    <category>Games</category>
+    <version>1</version>
+    <date>20180614</date>
+    <author>You</author>
+    <email>-not specified-</email>
+    <homepage>-not specified-</homepage>
+    <url>-not specified-</url>
+    <comment>-not specified-</comment>
+    <clrmamepro />
+  </header>
+</datafile>

Data/Extras/.nkit.iso to .iso Converter/Dats/Custom/Wii/Custom.dat

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE datafile PUBLIC "-//Logiqx//DTD ROM Management Datafile//EN" "http://www.logiqx.com/Dats/datafile.dtd"[]>
+<datafile>
+  <header>
+  
+    <name>Custom Dat</name>
+
+    <description>Created by NKit</description>
+    <category>Games</category>
+    <version>1</version>
+    <date>20180614</date>
+    <author>You</author>
+    <email>-not specified-</email>
+    <homepage>-not specified-</homepage>
+    <url>-not specified-</url>
+    <comment>-not specified-</comment>
+    <clrmamepro />
+  </header>
+</datafile>

Data/Extras/.nkit.iso to .iso Converter/Dats/GameTdb_wiitdb_download_url.txt

@@ -0,0 +1 @@
+https://www.gametdb.com/wiitdb.txt

Data/Extras/.nkit.iso to .iso Converter/Dats/Redump/Wii/Redump.dat

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE datafile PUBLIC "-//Logiqx//DTD ROM Management Datafile//EN" "http://www.logiqx.com/Dats/datafile.dtd"[]>
+<datafile>
+  <header>
+  
+    <name> REPLACE THIS FILE WITH THE WII REDUMP.DAT </name>
+
+    <description>Created by NKit</description>
+    <category>Games</category>
+    <version>1</version>
+    <date>20180614</date>
+    <author>You</author>
+    <email>-not specified-</email>
+    <homepage>-not specified-</homepage>
+    <url>-not specified-</url>
+    <comment>-not specified-</comment>
+    <clrmamepro />
+  </header>
+</datafile>

Data/Extras/.nkit.iso to .iso Converter/Readme.txt

@@ -0,0 +1,84 @@
+- - - - - -__- - -.- - - -.- - -.- - -.- - \|/.- - -.- - -.-__- -.- - - -
+ .  .  ___/ |__ .    __ .   .  .  .     . --O--.  __  . ___/ | _____ .  .
+       \__ +   \ ___/ |__      __    .  __ /|\___/ |__  \__  |/ +  /   .
+  .   . /   | + \\__     \ ___/ |__.___/ |__  \__     \ ./   |    / .
+    .  /+   |    \/  _|   \\__     \\__     \  /   |   \/ +   +  /_   .
+.     /     |+    \  \_    \/   |   \/   |   \/    |    \    |     \ .  .
+   . /    + |   +  \_ |     \_  |    \_  |    \_   |     \_+ |  +   \ .
+.  _/  +    |_______/ |______/  |_____/  ______/   _______/  |       \_ .
+  .\      + |==\______|===\_____|==\_____|==\______|==\______|+    +  /
+- - \_______| - - - - - - -  Proudly Presents  - - - - - - - |_______/ - -
+
+      NKit - Tools to Recover / Preserve Wii and GameCube Disc Images
+
+
+  .
+.     .  .
+
+Overview
+----------------------------------------------------------------------------
+NKit is a Nintendo ToolKit that can Recover and Preserve Wii and GameCube
+disc images 
+
+Recovery is the ability to rebuild source images to match the known good
+         images verified by Redump 
+
+Preserve is the ability to shrink any image and convert it back to the
+         source iso
+
+NKit can convert to ISO and NKit format. The NKit format is designed to
+shrink an image to it's smallest while ensuring it can be restored back to
+the original source data. NKit images are also playable by Dolphin 
+
+Read the Docs :) - https://wiki.gbatemp.net/wiki/NKit
+
+  .
+.     .  .
+Features
+----------------------------------------------------------------------------
+
+- Recovery and Preservation of GameCube and Wii images
+- NKit Format (smallest format, Dolphin compatible, GC is h/w compatible)
+- GC NKit format aligns audio and tgc files to 32k for playability
+- Wii NKit format removes hashes and encryption (Dolphin Compatible)
+- Reusable library for use in other projects
+- Test Mode
+- Summary log of all conversions
+- Rename images that match Dat file entries to a configurable mask
+- Supports 100% of Redump images (Unlicensed, All Regions, Multi Disc etc)
+- Scrubbed and Hacked preservation support
+
+Formats
+- GCZ support
+- ISO.DEC read support
+- WBFS read support
+- ISO support
+- RVT-R Wii ISO read support
+- NKit Format support (smallest format and Dolphin compatible)
+- Read the above images from Rar/Zip/7zip etc
+
+Recovery Abilities
+- Insert missing Wii Update (inc rare extra data), Channel / VC partitions
+- Replace Brickblocked Update partitions
+- Auto fixes modified disc headers (where the Data header remains intact)
+- Fixes rare corrupt Wii partition table (caused by WBM)
+- Fixes scrubbed trailing file 0's
+- Fixes truncated Wii images (where the Data partition is intact)
+- Fixes slightly overdumped images (from descramble tools)
+- Fixes Wii Data partitions moved before 0xF800000 to save space
+- Fixes compacted GC images
+- Fixes moved and reordered GC files
+- Fixes modified GC headers (inc. title, region hacks)
+- Fixes mod chip modified GC apploaders
+- Fixes GC images with non conformant junk
+- Fixes modified Wii region and ratings
+- Support for GC images with junk not generated with the image ID
+
+  .
+.     .  .
+Requirements
+- Windows | Linux | Mac
+- .Net or Mono 4.6.1 (Will be ported to dotnet core 3.0 soon)
+- Wine for Apps under Linux and Mac
+  .
+.     .  .