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Aspose.Cells provides the Shape.ReflectionEffect property to work with the reflection effect of shape or chart. It contains the following sub-properties which you can set to achieve different results as per your requirements.
The following screenshot shows the Microsoft Excel interface to set the Reflection Effect of Shape.

The following sample code loads the source excel file and accesses the first shape in the first worksheet and sets the sub-properties of Shape.ReflectionEffect property and then saves the workbook in the output excel file.
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