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.NET Excel framework is a high-performance and feature-rich to work with Microsoft Excel. This framework has an Excel creation and editing library that allows you to create, read, and edit Microsoft Excel files in any .NET application. It offers an Excel-inspired Spreadsheet UI control to create, edit, view, and format Excel documents. Its powerful conversion APIs make it easy to convert Excel files to PDF, images, and more.

.NET Excel Framework modules.

Why Syncfusion?

No server deployment fees

There are no distribution fees, per-server licensing fees, or royalties, which makes Excel Library very cost-effective.

Blazing-fast performance

It is optimized for usage in a server environment where speed and low memory usage are critical.

Powerful and comprehensive API

All the elements in a typical Excel document such as text, formatting, images, shapes, and tables are accessible through a comprehensive set of APIs.

Proven Excel library

Over more than 15 years, Syncfusion’s Excel Library has become mature and proven product.

Fully documented

The Syncfusion’s Excel Library comes with extensive documentation, knowledge bases, and samples.


Use a single API across all platforms.

Excel - creating and editing APIs

Syncfusion's Excel Library is a high-performance .NET Excel library that allows users to create, read, edit, and protect Excel documents in .NET applications without Microsoft Office or interop dependencies.

Import and export in csharp Excel

Import and export

Import data from various data sources, collection objects, and HTML tables. Also, export data to data tables, collection objects, and nested classes.

csharp Excel charts.

Excel charting

Excel Library supports 80+ charts to visualize data. Similarly, sparklines are supported to visualize data within a cell.

.NET Excel formulas.


More than 400 Excel functions are supported to evaluate formula cells quickly. Add-in functions, external formulas, and an array of formulas are also supported.

Excel spreadsheet template markers.

Template markers

Import data to Excel worksheets like mail merge in a Word document. Customized data importing is also supported.

Excel formatting


Use various cell and text formatting options along with advanced conditional formatting features to modify the appearance of the data.

Excel data processing.

Data processing

Perform various kinds of data processing such as data validation, sorting, and filtering.

Pivot tables.

Pivot tables

Pivot tables and pivot charts are widely used in the Spreadsheet control due to their ease-of-use in summarizing data. Syncfusion’s Excel Library allows you to create and edit them with a few lines of code.

Excel Protected View.


Encrypt or decrypt password-protected Excel files. Also, protect workbooks, worksheets, and cells from editing. You can make your Excel worksheets accessible to others with restricted access while also preventing unnecessary data loss or modifications using Excel Protected View.

.NET Excel shapes.


Create and edit various form controls, autoshapes, and comments.

Spreadsheet viewer and editor

The Spreadsheet control provides a Microsoft Excel-like control with major features of Microsoft Excel, including editing, formulas, charting, importing, and exporting.

High performance.

High performance

Open and save large Excel files in less time with minimal memory consumption. Experience smooth scrolling even with many cells in a view.

Open and save.

Open and save

Import and edit existing Excel files in the Spreadsheet control. Spreadsheets can be exported to XLS, XLSX, CSV, and PDF file formats.

Excel Charting in csharp


Spreadsheet supports charts and sparklines. Visualize data easily.

Formulas in csharp excel


More than 400 Excel-compatible functions are supported, such as cross-sheet references, named ranges, table formulas, and formulas.

Excel Formatting using csharp


The Spreadsheet control provides a variety of text and number formatting options along with conditional formatting to improve the appearance and effectiveness of a spreadsheet.

Csharp Excel Merge Cells

Merge Cells in Excel

You can merge multiple cells into a single large cell. Cells in a column will be merged row by row, and cells in a row will be merged column by column. The value of a top-left cell will be added to the merged cells and all other cell values will be deleted.

Data virtualization.

Data virtualization

The Spreadsheet control supports on-demand data loading when bound to data sources. It improves initial loading time by requesting only the visible data from the data source.


Excel to PDF conversion in csharp.

Excel to PDF

Convert an Excel workbook or worksheet to PDF format. Use various customization options like embedding fonts, ignoring empty pages or worksheets, and showing or hiding headers and footers.

Worksheet to image conversion in .NET

Worksheet to image

Worksheets can be converted to BMP, JPEG, PNG, and other image formats, with content such as data, formatting, charts, tables, and shapes.

Excel to CSV.

Excel to CSV/TSV

Convert spreadsheet data to CSV and TSV formats to generate lightweight reports.

Excel to HTML.

Excel to HTML

Dynamically render an Excel workbook or worksheet as an HTML file.

Excel to ODS conversion in .NET

Excel to ODS

Save Excel files in ODS format to use in applications like OpenOffice and Google Sheets.

Excel to SpreadsheetML conversion in csharp.

Excel to SpreadsheetML

SpreadsheetML is easy to work with and designed to be human readable and editable. Convert Excel files to SpreadsheetML using Syncfusion’s Excel Library.

Excel to JSON conversion in .NET.

Excel to JSON

Convert an Excel workbook or worksheet to JSON file in schema and non-schema formats.

.NET Excel Code Example

Easily get started with the .NET Excel Library using a few simple lines of C# code example as demonstrated below. Also explore our .NET Excel Library Example that shows you how to render and configure the .NET Excel.

//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
    //Instantiate the Excel application object
    IApplication application = excelEngine.Excel;
    //Set the default application version
    application.DefaultVersion = ExcelVersion.Xlsx;
    //Create a new Excel workbook
    IWorkbook workbook = application.Workbooks.Create();
    //Get the first worksheet in the workbook into IWorksheet
    IWorksheet worksheet = workbook.Worksheets[0];
    //Assign some text in a cell
    worksheet.Range["A3"].Text = "Hello World";
    //Save the document
//Create an instance of ExcelEngine
    Using excelEngine As ExcelEngine = New ExcelEngine()
    //Instantiate the Excel application object
    Dim application As IApplication = excelEngine.Excel
    //Set the default application version
    application.DefaultVersion = ExcelVersion.Xlsx
    //Create a new Excel workbook
    Dim workbook As IWorkbook = application.Workbooks.Create()
    //Get the first worksheet in the workbook into IWorksheet
    Dim worksheet As IWorksheet = workbook.Worksheets(0)
    //Assign some text in a cell
    worksheet.Range("A3").Text = "Hello World"
    //Save the document
    End Using

Other supported frameworks

The Excel processing is also available in Blazor, .NET Core, Xamarin, UWP, WinUI, and .NET MAUI frameworks. Check it out on other platforms at the links below:

Frequently Asked Questions

The Syncfusion .NET Excel Framework is a high-performance library and provides the following features:

  • Import and export data from/to common business objects easily.
  • Perform quick evaluation with 400+ functions.
  • Import data into a customized format using Template Markers.
  • Create and edit all chart types including Excel 2016 charts.
  • Cell data validations can be applied with operators, alert messages, custom formulas, and drop-down lists.
  • Manipulate cell width and height, hide and unhide cells, insert or delete cells, group and ungroup rows and columns, and more.
  • Supports formatting like number formats, text alignments, font settings, border settings, color settings, rich-text, and more.
  • One of the best .NET Excel libraries on the market, offering a rich set of APIs to interact with the software.
  • Create and edit auto shapes, comments, text boxes, combo boxes, check boxes, and option buttons.
  • Extensive demos, documentation, and videos to learn quickly and get started with Syncfusion Excel Framework.

No, this is a commercial product and requires a paid license. However, a free community license is also available for companies and individuals whose organizations have less than $1 million USD in annual gross revenue and five or fewer developers.

A good place to start would be our comprehensive getting started documentation.

The Syncfusion Excel framework supports platforms for web (Blazor, Flutter, ASP.NET Core, ASP.NET MVC, and ASP.NET Web Forms), mobile (.NET MAUI, Flutter, Xamarin, and UWP), and desktop (Windows Forms, WPF, WinUI, .NET MAUI, Flutter, Xamarin, and UWP).

You can find our Excel Framework demo here.

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Having an excellent set of tools and a great support team, Syncfusion reduces customers’ development time.
Here are some of their experiences.

Rated by users across the globe



Syncfusion’s file format components helped me create the reports I needed, fast. – J. Pereira, Software Developer.

The libraries have been built from scratch and refined for more than a decade to provide blazing-fast performance, comprehensive API, and compatibility across the latest and older versions of these files.

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Syncfusion File Format Libraries - Manipulate Excel, Word, PowerPoint, and PDF files

Read and write Excel, Word, PDF, and PowerPoint files. Also includes integrated visualization capabilities. Advanced features include support for pivot tables, pivot charts, mail-merge, and extensive formatting.


Succinctly Series: Statistics Using Excel Succinctly

Succinctly Series: Statistics Using Excel Succinctly

- by Charles Zaiontz


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