Visualizing conversion rates, sales pipelines, or any hierarchical data set becomes much clearer with a Funnel chart. In this article, you’ll learn how to create a Funnel chart in Excel using C# and Aspose.Cells for .NET. With just a few lines of code you can automate the generation of high‑impact Funnel visuals that are ready for export to XLSX, PDF, or images.

This article covers the following topics:

C# Excel Library to Create Funnel Charts

Aspose.Cells for .NET is a powerful spreadsheet library that enables developers to create, modify, and render Excel files programmatically. It offers a rich set of chart types, including the Funnel chart, which is not available in the native Microsoft Office interop libraries for server‑side scenarios.

Key benefits of using Aspose.Cells for .NET:

  • Comprehensive API – Full access to Excel features without COM dependencies.
  • Server‑side friendly – No need for Microsoft Office installation.
  • High performance – Handles large workbooks with minimal memory footprint.
  • Multiple output formats – Save as XLSX, XLS, CSV, PDF, PNG, and more.

Get started quickly:

  1. Download the latest version from the releases page.

  2. Install via NuGet:

    PM> Install-Package Aspose.Cells

Create a Funnel Chart in Excel using C#

Below are two complete, runnable examples that show how to:

  1. Create a basic Funnel chart from a static data set.
  2. Customize a Funnel chart (colors, data labels, and legend).

Note – All code snippets compile with .NET 6.0 or later and target net6.0 (or any later framework). Replace outputPath with an appropriate folder on your machine.

Example 1 – Basic Funnel Chart

What the code does

  1. Creates a workbook and adds sample data that represents a typical sales pipeline.
  2. Inserts a Funnel chart (ChartType.Funnel) starting at row 7, column 0.
  3. Binds the series values and categories to the data range.
  4. Saves the result as FunnelChart_Basic.xlsx.

Open the generated file in Microsoft Excel – you’ll see a clear Funnel chart that visualizes the drop‑off at each stage.

Example 2 – Customized Funnel Chart (Colors, Data Labels, Legend)

Highlights of the customization

  • Colors – Each funnel slice receives a distinct foreground color using Area.ForegroundColor and FormattingType.Custom.
  • Data Labels – Enabled value and percentage display centered inside each slice.
  • Legend – Positioned at the bottom with a horizontal layout for better readability.

Open FunnelChart_Customized.xlsx to see a fully styled funnel visual suitable for presentations or reports.

Get a Free License

If you need a temporary license to remove evaluation watermarks, visit the Aspose temporary license page. The free license works for 30 days and lets you evaluate the full feature set, including Funnel charts.

Funnel Chart Excel: Free Resources

Further reading and tools to deepen your Aspose.Cells expertise:

Conclusion

Creating a Funnel chart with Aspose.Cells for .NET is straightforward and requires only a few lines of C# code. The library provides full control over data binding, styling, and export options, making it ideal for server‑side reporting, dashboards, and automated Excel generation. Use the examples above as a foundation and adapt them to your own data sources and visual requirements.

If you have any questions or run into issues, feel free to ask for help on the Aspose.Cells support forum.

See Also