Visualizing multivariate data in a compact, easy‑to‑read format is a common requirement for dashboards, KPI reports, and performance reviews. A Radar (or Spider) chart lets you compare several quantitative variables across multiple series on a single, radial grid. In this guide you’ll discover how to create Radar charts in Excel using C# and Aspose.Cells for .NET. With minimal code you can generate both a basic Radar chart and a fully styled version that includes markers, custom colors, and filled areas.

This article covers the following topics:

C# Excel Library to Create Radar Charts

Aspose.Cells for .NET is a comprehensive Excel manipulation library that enables developers to create, modify, and render Excel files without requiring Microsoft Office. The library includes full support for all chart types, including Radar charts, and offers extensive customization options.

Key benefits of using Aspose.Cells for .NET:

  • Rich API – Access every Excel feature programmatically.
  • High Performance – Process large workbooks quickly and with low memory overhead.
  • Cross‑Platform – Works on Windows, Linux, and macOS.
  • Multiple Formats – Read/write XLSX, XLS, CSV, ODS, PDF, and more.

Installing Aspose.Cells

You can obtain the library from the official releases page or via NuGet:

PM> Install-Package Aspose.Cells

Once installed, add a reference to Aspose.Cells in your C# project and you’re ready to start creating charts.

Create a Radar Chart in Excel using C#

Below are two complete code samples that demonstrate how to produce Radar charts with Aspose.Cells.

1️⃣ How to Create a Simple Radar Chart

The following example creates a basic Radar chart that compares two data series across five categories.

Explanation

  1. Data preparation – The worksheet holds five categories (A‑E) and two numeric series.
  2. Chart creation – ChartType.Radar creates a basic Radar chart.
  3. Series binding – NSeries.Add links the worksheet ranges to the chart.
  4. Saving – The workbook is written to SimpleRadarChart.xlsx.

Running the program produces an Excel file whose first sheet contains the data and a Radar chart placed at the specified position.

2️⃣ How to Create a Styled Radar Chart with Markers and Filled Areas

The next example adds markers, custom colors, and a filled area to illustrate how to style a Radar chart for presentation‑ready reports.

Key styling points

FeatureCode snippetEffect
Custom markersMarker.MarkerStyle = ChartMarkerType.Circle;Distinguishes series points.
Series borderBorder.Color = Color.DarkBlue;Adds a solid line around each data series.
Semi‑transparent fillArea.ForegroundColor = Color.FromArgb(80, Color.LightBlue);Shows overlapping areas while preserving visibility.
Plot area cleanupPlotArea.Area.Formatting = FormattingType.None;Removes the default background for a cleaner chart.

Running the program generates StyledRadarChart.xlsx, which contains a Radar chart with colored fills, markers, and polished visual styling—perfect for executive dashboards or performance reports.

Get a Free License

To try Aspose.Cells without restrictions, obtain a temporary license from the Aspose free temporary license page. The license removes evaluation watermarks and enables full‑feature access during development.

Radar Chart Excel: Free Resources

Keep learning and explore more about Excel automation:

Conclusion

In this article we demonstrated how to generate both a simple and a fully styled Radar chart in Excel using C# and Aspose.Cells for .NET. The library’s intuitive API lets you focus on data and design rather than low‑level Excel internals. Feel free to adapt the examples to your own data structures, add more series, or integrate the charts into larger reporting solutions.

If you have any questions, need assistance, or want to share your own Radar‑chart implementations, visit the Aspose.Cells support forum.

See Also