How to Create an Excel File in C# using IronXL ByChaknith Bin August 29, 2022 Updated June 22, 2025 Share: 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.Further Reading: IronXL for Python Documentation show less