How to Write an Excel File in C#

In this tutorial, you will learn how to read and write Excel files using IronXL in C# with Visual Studio 2022. The tutorial starts by ensuring you have the latest version of IronXL installed via the NuGet package manager. After setting up, the process begins by including the IronXL namespace in your project. You will learn how to load an Excel file using the workbook.load function and assign the default worksheet to a variable. The tutorial guides you through selecting a range of cells, iterating over them, and printing their values to the console, while also calculating a running total of numeric data. The next step is to validate if the sum of the range's values matches a specific cell's value. If it does, confirmation is printed to the console. You will then modify a cell value (B2) by setting it to 11.54 and save the changes to a new Excel file named 'modified.xlsx'. The console output will display the cell contents and validation results, and the tutorial concludes by showing the modified Excel file with updated data. This tutorial is an excellent resource for those looking to enhance their skills in manipulating Excel files programmatically using C# and IronXL.

Further Reading: C# Write to Excel [Without Using Interop] Code Example Tutorial