OD Easy MagicaVoxels allows you to import .vox files exported from MagicaVoxels (https://ephtracy.github.io). This is a generic Layout plugin as well as a Modeler plugin:
Options:
Vox File: Select the .vox file generated by MagicaVoxels
Block Type: Defines what kind of object will be created for each voxel
Cube Scale: Defines the scale of each voxel
Keep Intermediate OBJ : This option, in addition to the .lwo object will also keep an .obj file
Here's a how-to video showing OD Easy MagicVoxels in action.