It's a simple model swap for the Augmented Lost Allagan Katana, which is a simple-to-use, straightforward application that provides the ability to easily change the look of your character's weapon into the likeness of the popular beast from the popular game franchise, Hellhound.

The application has multiple color options to choose from.

If you want to change colors, you can follow the instructions from the installation process. You need to download TexTools, which is a simple, easy-to-use application that can be used to download files. 

Once you have downloaded the program, you need to open it and select "Import Modpak" from the "Mods" drop-down menu. You will then be able to import the desired file from the given location. You can then select the desired file and select open. You need to make sure that all the checkboxes are checked and then select "Import".