How to Create an Excel File in C# using IronXL Curtis Chau Updated:July 12, 2025 Download IronXL pip Download Start Free Trial Copy for LLMs Copy for LLMs Copy page as Markdown for LLMs Open in ChatGPT Ask ChatGPT about this page Open in Gemini Ask Gemini about this page Open in Grok Ask Grok about this page Open in Perplexity Ask Perplexity about this page Share Share on Facebook Share on X (Twitter) Share on LinkedIn Copy URL Email article Unlock the power of Excel automation in C# with IronXL and learn how to effortlessly create, customize, and secure your workbooks without the need for Microsoft Excel, all while enjoying the support of a dedicated assistance team—watch now to enhance your .NET 6 projects! more... In this tutorial, we explore how to create Excel files in C# using the IronXL library, compatible with the .NET 6 framework. Begin by installing IronXL via the NuGet Package Manager. Import the library into your program and create a workbook using Workbook.Create. Customize your sheet by naming it and assigning values or formulas to specific cells. Format cells by adjusting border styles, background colors, and font styles. IronXL allows for formula integration, mimicking Excel's functionality, and provides sheet protection features to prevent unauthorized editing. Save your workbook locally through the SaveAs function. Run the project to generate an Excel file reflecting your code instructions. IronXL streamlines Excel operations without requiring Microsoft Excel or Excel Interop on your server. For further assistance, the support team is available to help.