OH, I see. Perhaps a larger image of the sprite slices. And maybe a demonstration video or gif?
I use it for fauxton3d https://gizmo199.itch.io/fauxton3d
You should use the magicavoxel to create the voxel model first ly
Then generate the slice image by this tool.
Finally I use this in the Gamemakerstudio and I will update the tool and doc soon.
TKS
Right after I wrote that reply I came across https://omagerio.itch.io/sprite-stacking-viewer a fellow itch.io user. You two should team up.