The C# Excel Library

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

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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 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);

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);

Imports IronXL
Imports System
Imports System.Linq

' Supported for XLSX, XLS, XLSM, XLTX, CSV and TSV
Dim workBook As WorkBook = WorkBook.Load("sample.xlsx")

' Select worksheet at index 0
Dim workSheet As WorkSheet = workBook.WorkSheets(0)

' Get any existing worksheet
Dim firstSheet As WorkSheet = workBook.DefaultWorkSheet

' Select a cell and return the converted value
Dim cellValue As Integer = workSheet("A2").IntValue

' Read from ranges of cells elegantly.
For Each cell In workSheet("A2:A10")
    Console.WriteLine("Cell {0} has value '{1}'", cell.AddressString, cell.Text)
Next

' Calculate aggregate values such as Min, Max and Sum
Dim sum As Decimal = workSheet("A2:A10").Sum()

' Linq compatible
Dim max As Decimal = workSheet("A2:A10").Max(Function(c) c.DecimalValue)

PM >Install-Package IronXL.Excel

Install-Package IronXL.Excel

See what’s new:Better AutoSizeColumn for sizing

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.

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

Create

Design Your Spreadsheets

Customize Your Spreadsheets with Ease

Save and Export

Export Worksheet Formats

Edit Workbooks

Visually Represent Your Data

Edit The Layout

Working With Cells

Styling Cells

Working With Data

Using Formulas

Working With Math Functions

Secure Your Workbooks

Add Passwords

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
```
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. 2,237,574 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