What is an example of a voxel?

Could you please elaborate on the concept of a voxel, and provide a concrete example to illustrate its application? As I understand, a voxel refers to a volumetric pixel, but I'm interested in how it is specifically used in the realm of cryptocurrency and finance. Perhaps you could explain how it might be utilized in modeling three-dimensional financial data or visualizing complex transactions? An illustrative scenario would greatly aid my comprehension of this technical term.