Peter Rakos from Gamasutra posts the following article:
"Cutting-edge computer games use different graphics subsystems -- so-called 3D graphics engines. Source (used in Half Life 2), Unreal Engine (Unreal Tournament), idTech 4 (Doom 3), CryENGINE2 (Crysis) or Clever's Paradox engine are well-known among the players and the game industry experts.
It's time to learn a new 3D game engine name: Microsoft Excel.
It is understood that Excel is an all-round office tool, but probably it is unknown that it has a bunch of features that makes Excel a high-class 3D graphics engine.
In this article I will demonstrate Excel's arithmetical facilities, the embedded rendering subsystems (there are two of them!) and the revolutionary approach which might just cause a paradigm shift. I hope you will discover that Excel effectively and efficiently incorporates practicality, tons of features, the multi-platform portability and the high performance with the unique and futuristic 3D engine features.
The chapters even have demo programs and movies created with the Excel 3D engine."