We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. (Last updated on: November 16, 2018).
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback


A high-performance and feature-rich .NET Excel framework to work with Microsoft Excel documents. This framework has Excel creation and editing library that allows you to create, read, and edit Microsoft Excel files in any .NET application. It offers Excel-inspired Spreadsheet UI controls to create, edit, view, and format Excel documents. Its powerful conversion APIs make it easy to convert Excel files to PDF, image, 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 XlsIO very cost-effective.

Blazing-Fast Performance

Optimized for usage in a server environment where, speed and low memory usage is 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

Syncfusion Essential XlsIO is a well -matured and also a proven product, having evolved for over 13+ years.

Fully Documented

Syncfusion Essential XlsIO comes with extensive documentation, knowledge base, and samples.


Use a single API across all platforms.

Excel - Creation and Editing APIs

Syncfusion Essential XlsIO 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

Import and Export

Import data from various data sources and collections. Also, export data to data tables, collections and JSON objects.

Excel Charts

Excel Charting

Supports 80+ charts to visualize the data. Similarly, sparklines are supported to visualize data within a cell.

Excel Formulas


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

Template Markers

Template Markers

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

Excel Formatting


Supports various cell and text formatting options along with advanced conditional formatting features.

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 features in the Spreadsheet control due to their ease-of-use in summarizing data. Syncfusion XlsIO allows you to create and edit them with a few lines of code.

Excel Protection


Encrypt or decrypt password-protected Excel files. Also, protect the editing of workbooks, worksheets, and cells.

Excel Shapes


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

For more information, check out our Syncfusion XlsIO (Excel library) features
.NET Framework Excel library .NET Core Excel Library UWP Excel Library Xamarin Excel Library

Spreadsheet Viewer/Editor

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

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.



Spreadsheet supports charts and sparklines. Visualize data in an easy way.



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



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

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

Excel to PDF

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

Worksheet to Image

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 with their widely used, lightweight reports.

Excel to HTML

Excel to HTML

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

Excel to ODS

Excel to ODS

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

Excel to SpreadsheetML

Excel to SpreadsheetML

SpreadsheetML is easy to work with and designed to be human-readable and editable. Convert Excel files to SpreadsheetML with Syncfusion XlsIO.


Cody Icon

File Formats

$ 995

One developer per license

Developer Platform

Essential Studio

$ 1,995

One developer per license


Unlimited Global License

Cover everyone in your organization for one low annual fee

1,000+ web, desktop, and mobile controls
Predictive Analytics
File Formats (Word, Excel, PowerPoint, and PDF)
Dashboard Platform
Big Data Platform
Report Platform
Data Integration Platform
Dedicated Account Representative
Quarterly product releases
Support within 24 hours on all business days
Licensing Management Portal
Commercial Use
Max Developer Count
1 per license
1 per license
Coverage Period
1 year
1 year
1 year



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.

CONTINUE READING View all Customer Stories


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

A well known industry partner

Working with the industry’s best and brightest minds to streamline reporting

Syncfusion Customers
  • "Syncfusion has all of the required controls, reporting and dashboarding tools across multiple platforms that allow us to leverage our existing skills with a simple and value-for-money licensing model."
    Jono Walker, Walkerscott
  • "An excellent toolset and a great support team. I’ve been using Syncfusion’s products for a couple of years, and they save me a lot of time on development."
    Oswaldo Diaz, Product Manager, Hipermetrics.com


Greatness—it’s one thing to say you have it, but it means more when others recognize it. Syncfusion is proud to hold the following industry awards.

Syncfusion Awards
Scroll up icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon