With the ComponentOne installer, you get the CalcEngine samples that help you understand the implementation of the product. The samples are available at the default installation folder:
Documents￥ComponentOne Samples￥WinForms￥v4.5.2￥CalcEngine.

The list of available samples is as follows:

Sample	Description
VBAEngine	This sample demonstrates how to use C1CalcEngine to calculate a simple VBA style formulas.
ExcelEngine	This sample demonstrates how to use C1CalcEngine to calculate a simple Excel style formulas.