The C# Excel Library

Go beyond basic spreadsheet editing. Get full control over workbooks, formulas, and charts for .NET 10 without Office Interop.

Create and edit excel files, formulas, charts, & images

Style cells, borders, fonts, and add hyperlinks

Compatible with XLSX, XLS, CSV, TSV, XML, & DataTables

Free 30-day trial, full features, no credit card

Read Excel Files without Interop See All 28 Code Examples

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);

Install-Package IronXL.Excel

Next Step: Start Free Trial

Fully functional without watermarks

30-day trial - no credit card required

Next Step: Start Free Trial

Fully functional without watermarks

30-day trial - no credit card required

PM > Install-Package IronXL.Excel

IronXL

See what’s new:

Minutes → milliseconds on 500K+ cells

Cross Platform Support

Designed for C#, F#, & VB.NET running on .NET 10, 9, 8, 7, 6, 5, Core, Standard, or Framework

.NET Versions:

C#, VB.NET, F# Languages
.NET Core (10, 9, 8, 7, 6, 5, and 3.1+)
.NET Standard (2.0+)
.NET Framework (4.6.2+)

OS & Processors:

Windows (x64, x86)
Mac (x64, ARM)
Linux (x64)

.NET Project Types:

Web (Blazor & WebForms)
Desktop (WPF & MAUI)
Console (App & Library)

App Environments:

Windows (10+, Server 2016+)
Linux (Ubuntu, Debian, CentOS, etc.)
Mac (macOS 10+)
Docker (Windows, Linux, Azure)
Azure (VPS, WebApp, Function)
AWS (EC2, Lambda)

IDEs:

Microsoft Visual Studio
Jetbrains ReSharper & Rider

Binary Certification

DigiCert Signed Binaries

A C# Excel Library that prioritizes accuracy, ease of use, and speed.

IronXL is the leading C# Excel library for generating and editing Excel documents in .NET. Its user friendly API allows developers to add Excel functionality to .NET projects in minutes.

Get your free 30-day Trial Key instantly.

Your trial key should be in the email.
If it is not, please contact
support@ironsoftware.com

The Excel API you need, without the Office Interop hassle.

View Full Features Set

Why IronXL

Read, write, and edit Excel in C#. No Office Interop. Runs on Windows, Linux, macOS & cloud.

Broad format support

Read & write XLS, XLSX, XLSM, XLTX, CSV, TSV.
Export to JSON, HTML, and binary formats in one call.
Convert between formats without Office Interop or Excel installed.

Outcome: One library for every Excel format your project will ever need.

Up & running in 5 mins

PM >
Install-Package IronXL.Excel

→ 5-minute quick starts.
Simple API: WorkBook.Load(), WorkBook.Create(), worksheet["A1"].Value.
Smart defaults: auto-recalculated formulas, intuitive WorkSheet["A1:B10"] range syntax.

Outcome: Ship Excel features this sprint, not next quarter.

Enterprise performance

.NET 10, Core, Standard, or Framework
C#, VB.NET, F# supported. DigiCert signed binaries.
Deploys anywhere: Windows, Linux, macOS, Docker, Azure, AWS, on-premise, air-gapped.

Outcome: Scale from desktop tools to enterprise document processing.

Accurate data handling, any source

Native data types: text, numbers, dates, currencies, formulas, percentages.
Formulas recalculate on every edit. Full math, sort, filter, aggregate (LINQ-compatible).
Convert directly to/from System.Data.DataSet and DataTable for database workflows.

View Code Examples

Developer-first support & licensing

Perpetual license: buy once, use forever. Optional updates and renewals.
24/5 engineer support (24/7 in Premium). Real humans, median chat response <1 min.
30-day money-back guarantee. Not the right fit? Full refund, no questions.

Chat With an Engineer

For builders

Features you'll actually use:
- read/write XLSX, XLS, CSV
- formula recalculation
- cell ranges (A1:B10)
- conditional formatting
- charts & images
- password encryption
- sort/filter/aggregate
- DataSet/DataTable conversion
- freeze panes, autosize
- JSON & HTML export
Works everywhere: Windows, Linux, macOS, Docker, Azure, AWS, cloud.

(30 days, fully-functional product)

For buyers

Trusted by 2M+ engineers. 2,030,246 NuGet installs (verified on the features page).
No Microsoft Office or Excel Interop required.
Redistribution / SaaS / OEM options available.
Procurement-friendly: perpetual license, optional renewals, invoice available, multiple payment options (incl. local: Amazon Pay, Alipay, Apple Pay, iDEAL, SEPA, ACH).
30-day money-back guarantee.

See Licensing

Trusted by millions of engineers worldwide

Every time developers ask, it's a YES! from IronXL

switch(faqQuestions)
{ 
    case "Can I deploy my application using the library to Linux, macOS, or Windows, including Docker containers?": return "YES";
    case "Can I render pixel-perfect PDFs from complex HTML5, CSS3, and JavaScript?": return "YES";
    case "Is the library thread-safe for use in highly concurrent, multi-threaded server applications and APIs?": return "YES";
    case "Can I set custom viewport dimensions and print media CSS to control responsive layouts?": return "YES";
    case "Is IronPDF compatible with Azure Functions?": return "YES";
    case "Can I permanently redact sensitive text and images from PDF documents?": return "YES";
    case "Can I generate a PDF from a URL that requires authentication via custom headers, cookies, or form logins?": return "YES";
    case "Can I access PDF DOM through ObjectModel property?": return "YES";
    case "Can I programmatically fill, read, and flatten interactive AcroForm?": return "YES";
    case "Does it support generating PDF/A and PDF/UA compliant documents for archiving and accessibility standards?": return "YES";
    case "Can I secure a document with 256-bit AES password encryption and set user permissions?": return "YES";
    case "Can I apply and verify digital signatures on a PDF using X.509 certificates?": return "YES";
    case "Can I test IronPDF in my live project for free now?": return "YES, click here to start your 30-day free trial";
}