Style Cells, Borders, and Fonts in Excel with C# IronXL allows C# developers to style any Excel Cell and Range in C#. IronXL covers most of the styling available in Microsoft Excel, such as fonts, text alignment, borders, colors, backgrounds, and patterns. The code example below shows a wide range of styles configurable with IronXL. Individual Cell and Range borders (bottom, top, left, right, and diagonal) can be set to 14 different border styles such as dotted, dashed, and double, to name a few, using the enum BorderType. You can enable or disable the ShrinkToFit and WrapText properties to have more control over how the spreadsheet organizes cell sizes. How to Use Excel Cell Border Style in C# Install an Excel library to apply cell border styles. Load the Excel file and set the default Worksheet. Format the Worksheet using a Style object. Save the changes to the Excel file. Learn How to Adjust Excel Cell Font Size in C# Related Docs Links View on Github Related Tutorial Related How-To Guide Class Documentation Download IronXL DLL Report an Issue on this page Ready to Get Started? Nuget Downloads 1,698,907 | Version: 2025.11 just released Free NuGet Download Total downloads: 1,698,907 View Licenses
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