A high-performance and feature-rich .NET Excel framework to work with Microsoft Excel documents. 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 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, images, and more.
There are no distribution fees, per-server licensing fees, or royalties, which makes Excel Library very cost-effective.
Optimized for usage in a server environment where speed and low memory usage are critical.
All the elements in a typical Excel document such as text, formatting, images, shapes, and tables are accessible through a comprehensive set of APIs.
Syncfusion Excel Library (Essential XlsIO) is a mature and proven product, having evolved for over 13+ years.
Syncfusion Excel Library comes with extensive documentation, knowledge base, and samples.
Use a single API across all platforms.
Syncfusion Excel Library (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 data from various data sources and collections. Export data to data tables, collections, and JSON objects.
Use 80+ charts to visualize data. Similarly, use sparklines to visualize data within a cell.
More than 400 Excel functions are supported to evaluate formula cells quickly. Similarly, add-in functions, external formulas, and an array of formulas are supported.
Import data to Excel worksheets like mail merge in a Word document. Customized data importing is also supported.
Use various cell and text formatting options along with advanced conditional formatting features.
Perform various kinds of data processing such as data validation, sorting, and filtering.
Pivot tables and pivot charts are widely used features in the Spreadsheet control due to their ease-of-use in summarizing data. Syncfusion Excel Library allows you to create and edit them with a few lines of code.
Encrypt or decrypt password-protected Excel files. Also, protect the editing of workbooks, worksheets, and cells.
Create and edit various form controls, autoshapes, and comments.
The Spreadsheet control provides a Microsoft Excel-like control with the major features of Microsoft Excel, including editing, formulas, charting, importing, and exporting.
Open and save large Excel files in less time with minimal memory consumption. Experience smooth scrolling even with many cells in a view.
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.
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.
For more information, check out our Spreadsheet control viewer and editor features:
Convert an Excel workbook or worksheet to PDF format. Various customization options are provided, like embedding fonts, ignoring empty pages or worksheets, and showing or hiding headers and footers.
Worksheets can be converted to BMP, JPEG, PNG, and other image formats, with content such as data, formatting, charts, tables, and shapes.
Convert spreadsheet data to CSV and TSV formats with their widely used, lightweight reports.
Dynamically render an Excel workbook or worksheet as an HTML file.
Save Excel files in ODS formats to use in various applications like OpenOffice and Google Sheets.
SpreadsheetML is easy to work with and designed to be human-readable and editable. Convert Excel files to SpreadsheetML with Syncfusion Excel Library.
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Syncfusion’s file format components helped me create the reports I needed, fast. – J. Pereira, Software Developer.
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.
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.