How to extract textures?

Hello, I want to edit the texture of main character as shown in the post of rorschachrev : http://www.grimdawn.com/forums/showthread.php?t=37869.
So I have read official tutorial and the one in the forum about Asset Manager : http://www.grimdawn.com/forums/showthread.php?t=37873, but it doesn’t work, I did not get the .TEX files.
Those are the steps I followed:

  1. Create a folder named “GDMod” and copy into it the database folder with the needed files

  2. open Asset Manager, set:
    Working Directory C:\GDMod
    Build Directory C:\GDMod
    Tools Directory C:\Program Files (x86)\Steam\steamapps\common\Grim Dawn\

  3. copy content of GDModmods in GDMod\mods

  4. Open Asset Manager and Tools->Extract Game Files pointing to Grim Dawn folder

  5. Build the mod

Now in my mod folder I have the resource, source and asset files, but no files are in them

I also tried to invert step 4 with 5 but nothing

Please tell me where I am messing up, thanks

Try this:
Undo step 2, and then just do step 4.

mhh nothing, the assets and source folders still does not contain any file.
The Tex files should be in the assets folder after the extract process right?

Ok, I solved with a simple uninstall. I found the tex of the character and I am going to work on it, to import it back with Asset Manager What is the right format?

I imported the texture in Asset Manager (source folder) and created the tex file using the Auto-Create Asset function, in Assets it create the tex files but they remain in “In Progress” state, I tried to build but in-game the mod doesn’t seem to have effect.
I tried with jpg, psd, tga and bmp format, I read in other posts that it is a bug, I hope that there is a way to overcome it.