Create a CSV file using C#

Create and output a CSV file easily with IronXL's free for development. The following code shows you how.

How to Create a CSV file using C#

• Add IronXL Package
• Load existing WorkBook and save as CSV File

Step 1

1. Add IronXL Package

First, you must have IronXL installed. There are various options. You can download it directly: https://ironsoftware.com/csharp/excel/docs/

Or you can import the IronXL NuGet package by following the next few steps

• Right-click on the Solution in the Solution Explorer
• Click Manage NuGet Packages
• Browse for IronXL.Excel
• Click Install

# Install IronXL via the NuGet Package Manager Console
Install-Package IronXL.Excel

# Install IronXL via the NuGet Package Manager Console
Install-Package IronXL.Excel

IronXL.Excel NuGet Package

How to Tutorial

2. Save Workbook as CSV

Easy as that!

Here is the code for this little project. This code loads an existing Excel Workbook, and then simply saves it in the CSV format by using the SaveAsCsv method.

The Normal Excel workbook contains the following data:

// Import the IronXL library
using IronXL;

class Program
{
    static void Main()
    {
        // Load an existing workbook
        WorkBook wb = WorkBook.Load("Normal_Excel_File.xlsx"); // You can import .xls, .csv, or .tsv files

        // Save the workbook to a CSV file. This will save the first worksheet as a CSV.
        wb.SaveAsCsv("SaveAsCSV.csv", ","); // This will output: SaveAsCSV.Sheet1.csv
    }
}

// Import the IronXL library
using IronXL;

class Program
{
    static void Main()
    {
        // Load an existing workbook
        WorkBook wb = WorkBook.Load("Normal_Excel_File.xlsx"); // You can import .xls, .csv, or .tsv files

        // Save the workbook to a CSV file. This will save the first worksheet as a CSV.
        wb.SaveAsCsv("SaveAsCSV.csv", ","); // This will output: SaveAsCSV.Sheet1.csv
    }
}

' Import the IronXL library
Imports IronXL

Friend Class Program
	Shared Sub Main()
		' Load an existing workbook
		Dim wb As WorkBook = WorkBook.Load("Normal_Excel_File.xlsx") ' You can import .xls, .csv, or .tsv files

		' Save the workbook to a CSV file. This will save the first worksheet as a CSV.
		wb.SaveAsCsv("SaveAsCSV.csv", ",") ' This will output: SaveAsCSV.Sheet1.csv
	End Sub
End Class

Additionally, the IronXL Excel library provides the following features:

• A broad set of functions, including data manipulation, data export, data import and importing from other sources.
• Support for chart management that is fully compatible with Excel.
• Support for Excel's most popular file formats (.xlsx) and other file formats.
• Support for cell formatting such as text alignment, font size, color, etc.
• Ability to control the way that cells are displayed in an Excel workbook (e.g. gridlines).

Library Quick Access

IronXL API Reference Documentation

Learn more and share how to merge, unmerge, and work with cells in Excel spreadsheets using the handy IronXL API Reference Documentation.

IronXL API Reference Documentation