Viewing custom made assets via Asset Editor without a crash

[Lonecat Nekophrodite]

I've download some unit assets for Civ6 available on this website. How can I view custom made assets via Asset Editor without crashing the program? Last time I did try to view Moar Units assets it crashes the program, default assets, no problemo.

What are the file extensions of the asset pieces? and do I have to move or copy these files into a specially made folder and which one so I can begin viewing (and crafting) these.

 

[Deliverator]

Unfortunately a lot of the assets shared in Modbuddy projects here were sort of broken by the huge Gathering Storm asset pantry overhaul. You can download an updated project with all the Steel and Thunder 3D art here:
https://github.com/deliverator23/UnitArtCooker/archive/master.zip

The architecture of assets is explained in this diagram and this post under Filetypes.

 

[Lonecat Nekophrodite]

So how can I add Custom made Assets available in this site to my mod projects? (I've Downloaded your TEST UNIT exercise and viewed it with asset editor and the T34 shown up as described in your tutorials as in the links above)
For this exercise (which I plan to use in my mod project anyway) i've began with T-34. This is what I did.

Which file should I edit this line?

<m_GeometrySet>
   <m_ModelInstances>
        <Element>
            <m_Name text="Root"/> <!-- the Model name -->
            <m_GeoName text="T34_Tank"/> <!-- the name of the corresponding Geometry metadata (.geo file) -->
            <m_GroupStates>
                <Element>
                    <m_Values>
                        <m_Values>
                            <Element class="AssetObjects::ObjectValue">
                                <m_ObjectName text="T34_Material"/>       <!-- the name of the Material metadata (.mtl file) to use to skin this model.
                                <m_eObjectType>MATERIAL</m_eObjectType>
                                <m_ParamName text="Material"/>
                            </Element>
                        </m_Values>
                    </m_Values>
                    <m_GroupName text="T34_Material"/> <!-- The name of the Material that the Mesh is bound to inside the .fgx - can use FGX Viewer/CivNexus6 to view this. -->
                    <m_MeshName text="T34"/> <!-- The name of the Mesh inside the .fgx -->
                    <m_StateName text="Default"/>
                </Element>
            </m_GroupStates>
        </Element>
    </m_ModelInstances>
</m_GeometrySet>

And where in that file? and how.
and what is 'm name' sir?