using IronXL; using System; using System.Linq; // Supported for XLSX, XLS, XLSM, XLTX, CSV and TSV WorkBook workBook = WorkBook.Load("sample.xlsx"); // Select worksheet at index 0 WorkSheet workSheet = workBook.WorkSheets[0]; // Get any existing worksheet WorkSheet firstSheet = workBook.DefaultWorkSheet; // Select a cell and return the converted value int cellValue = workSheet["A2"].IntValue; // Read from ranges of cells elegantly. foreach (var cell in workSheet["A2:A10"]) { Console.WriteLine("Cell {0} has value '{1}'", cell.AddressString, cell.Text); } // Calculate aggregate values such as Min, Max and Sum decimal sum = workSheet["A2:A10"].Sum(); // Linq compatible decimal max = workSheet["A2:A10"].Max(c => c.DecimalValue);

using IronXL; using IronXL.Styles; using IronSoftware.Drawing; using System.Linq; WorkBook workBook = WorkBook.Load("sample.xls"); WorkSheet workSheet = workBook.WorkSheets.First(); var range = workSheet["A1:H10"]; var cell = range.First(); // Set background color of the cell with an rgb string cell.Style.SetBackgroundColor("#428D65"); // Apply styling to the whole range. // Set underline property to the font // FontUnderlineType is enum that stands for different types of font underlying range.Style.Font.Underline = FontUnderlineType.SingleAccounting; // Define whether to use horizontal line through the text or not range.Style.Font.Strikeout = false; // Define whether the font is bold or not range.Style.Font.Bold = true; // Define whether the font is italic or not range.Style.Font.Italic = false; // Get or set script property of a font // Font script enum stands for available options range.Style.Font.FontScript = FontScript.Super; // Set the type of the border line // There are also TopBorder,LeftBorder,RightBorder,DiagonalBorder properties // BorderType enum indicates the line style of a border in a cell range.Style.BottomBorder.Type = BorderType.MediumDashed; // Indicate whether the cell should be auto-sized range.Style.ShrinkToFit = true; // Set alignment of the cell range.Style.VerticalAlignment = VerticalAlignment.Bottom; // Set border color range.Style.DiagonalBorder.SetColor("#20C96F"); // Define border type and border direction as well range.Style.DiagonalBorder.Type = BorderType.Thick; // DiagonalBorderDirection enum stands for direction of diagonal border inside cell range.Style.DiagonalBorderDirection = DiagonalBorderDirection.Forward; // Set background color of cells range.Style.SetBackgroundColor(Color.Aquamarine); // Set fill pattern of the cell // FillPattern enum indicates the style of fill pattern range.Style.FillPattern = FillPattern.Diamonds; // Set the number of spaces to intend the text range.Style.Indention = 5; // Indicate if the text is wrapped range.Style.WrapText = true; workBook.SaveAs("stylingOptions.xls");

Published September 16, 2022

How to Use a CSV Parser in C#

It's simple to create a CSV parser. With only two lines of code you can load a CSV document and convert it to Excel.

Step 1

1. Download IronXL

Before I show you how to create a CSV parser, we'll first install IronXL to your project (free for development).

You can download directly from the Iron Software website by using the following link: https://ironsoftware.com/csharp/excel/docs/

In Visual Studio select the Project menu
Click Manage NuGet Packages
Search for IronXL.Excel
Click Install

Simply, you can also use the Developer Command Prompt:

PM> Install-Package IronXL.Excel

Figure 1 - IronXL.Excel NuGet Package

How to Tutorial

2. Create a New Project

After you have installed IronXL, create a new project and add the IronXL namespace

using IronXL;

using IronXL;

Imports IronXL

VB C#

3. Load a CSV File into Excel

The following code uses the Workbook object’s Load method to load a CSV file into Excel. This file is then parsed. Lastly, it uses the SaveAs method to save the file in the csv format.

/**
Parse CSV File
anchor-load-a-csv-file-into-excel
**/
private void button4_Click(object sender, EventArgs e)
{
    WorkBook wb = WorkBook.Load("Normal_Excel_File.xlsx"); //Import .xls, .csv, or .tsv file
    wb.SaveAs("Parsed_CSV.csv"); //Exported as : Parsed_CSV.Sheet1.csv
}

/**
Parse CSV File
anchor-load-a-csv-file-into-excel
**/
private void button4_Click(object sender, EventArgs e)
{
    WorkBook wb = WorkBook.Load("Normal_Excel_File.xlsx"); //Import .xls, .csv, or .tsv file
    wb.SaveAs("Parsed_CSV.csv"); //Exported as : Parsed_CSV.Sheet1.csv
}

'''
'''Parse CSV File
'''anchor-load-a-csv-file-into-excel
'''*
Private Sub button4_Click(ByVal sender As Object, ByVal e As EventArgs)
	Dim wb As WorkBook = WorkBook.Load("Normal_Excel_File.xlsx") 'Import .xls, .csv, or .tsv file
	wb.SaveAs("Parsed_CSV.csv") 'Exported as : Parsed_CSV.Sheet1.csv
End Sub

VB C#

Don’t forget to create an Excel Workbook named Normal_Excel_File.xlsx containing the following data:

Figure 2 - Excel data to be converted to CSV

4. Export the Parsed CSV

Interestingly, the exported CSV file will be saved as Parsed_CSV.Sheet1.csv because the data is on Sheet1 inside of the Excel Workbook. Below is what the file would look like in File Explorer when selected.