The file contains a piece of code for the save, which will add a cheating amulet to the inventory (see screenshot). Tested on version 1.0.10.0 and in theory it works on any version unless they start encoding saves.

First of all, empty your inventory and exit the game. Open the save file with a text editor (for example notepad++). The saves are here: C:\Users\\Saved Games\wolcen\savegames\characters Don't forget to make a copy of the file, just in case.

This is what an empty “InventoryGrid” looks like: [], between the square brackets you need to insert the contents of the file. Save and play.