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The ASP.NET Core Spreadsheet, also known as the ASP.NET Core Excel viewer, is a feature-rich control for organizing and analyzing data in tabular format. It provides all the common Excel features, including data binding, selection, editing, formatting, resizing, sorting, importing, and exporting Excel documents.

Data binding

Bind data seamlessly with various local and remote data sources such as JSON, RESTful services, OData services, and WCF services. The control uses a data manager to handle data and supports customizing data requests and processing.

ASP.NET Core Spreadsheet data binding.

High performance

The ASP.NET Core Spreadsheet (Excel like grid) component is designed and optimized for loading large amounts of data, scrolling, and more.

Instant data loading in ASP.NET Core Spreadsheet.

Instant loading

ASP.NET Core Excel Viewer instant loading allows users to load large amounts of data into a worksheet and view it on demand with the help of row and column virtualization.

Smooth scrolling in ASP.NET Core Spreadsheet.

Smooth scrolling

The ASP.NET Core Spreadsheet control provides a smooth scrolling experience even with many cells in a view.

Editing in ASP.NET Core Spreadsheet.


Data editing allows you to add, edit, and remove formulas or values in a cell. Edit the contents of a cell directly in the cell or by typing the formula bar.

Excel-like selection

The ASP.NET Core Spreadsheet widget provides interactive support to highlight the cells, rows, columns, and sheets selected. Selection can be done through mouse, touch, or keyboard interaction.

Selection in ASP.NET Core Spreadsheet.


The ASP.NET Core Spreadsheet library provides a wide range of formulas with support for cross-sheet references.

Built-in formulas in ASP.NET Core Spreadsheet.

Built-in functions

The ASP.NET Core Spreadsheet with rich UI provides a built-in calculation engine is suitable for most of the calculations. Spreadsheet also provides an option to create and use custom formulas.

ASP.NET Core Spreadsheet dependent cell reference.

Auto calculation

Values are automatically recalculated when a dependent cell is edited.

Number formatting in ASP.NET Core Spreadsheet.

Number formatting

Number formatting is used to change the appearance of numbers in Spreadsheet. It helps display data as currency, percentages, short dates, long dates, time, fractions, and scientific numbers, similar to Excel.

Cell formatting

Using cell formatting, users can highlight a particular cell or range of cells from a whole workbook. The control supports various formatting options: font size, font family, font color, fill color, indent, and horizontal and vertical alignments of text.

Sheet tabs in ASP.NET Core Spreadsheet.

Open and save

Excel and CSV import

Load Excel documents initially or open them like an Excel application with data accuracy, styles, and formats. Microsoft Excel (.xlsx), Microsoft Excel 97-2003 (.xls), and comma-delimited values (.csv) file formats can be opened in a Spreadsheet.

Excel and CSV export

Easily save the Spreadsheet component with data accuracy, styles, and formats as an Excel file. The ASP.NET Core Spreadsheet supports file formats such as Microsoft Excel (.xlsx), Microsoft Excel 97-2003 (.xls), and comma-delimited values (.csv).

Sort and filter

  • Reorganize data faster by sorting the range of cells in either the ascending or descending order. The custom sort option allows you to sort multiple columns.
  • When filtering, if values in one or more columns do not meet the filtering criteria, all the data will be hidden. You can filter text, dates, and numbers.

ASP.NET Core Spreadsheet sorting and filtering.

There is built-in support for hyperlinks and bookmarks. Navigate to web links or cell references within the sheet or other sheets in the workbook.

Hyperlink in ASP.NET Core Spreadsheet.


The image feature allows users to view, insert, and modify a picture in a spreadsheet with customizing options.

Image in ASP.NET Core Spreadsheet.


The chart feature transforms the Spreadsheet data into an intuitive overview for better understanding.

Chart in ASP.NET Core Spreadsheet.

Ribbon UI

The ASP.NET Core Spreadsheet provides an interactive ribbon that organizes the spreadsheet’s features into a series of tabs. Collapse the ribbon to make more rows visible in the viewport.

Ribbon in ASP.NET Core Spreadsheet.

Collaborative editing

Easily collaborate on workbooks. Multiple users can work on a spreadsheet at the same time and view the changes made by others instantly.

Collaborative editing in ASP.NET Core Spreadsheet.

Interactive features

Clipboard operations in ASP.NET Core Spreadsheet.

Copy to clipboard

Use the clipboard operations, cut, copy, and paste, just like Microsoft Excel. You can paste the values or formulas with or without formatting in a newly selected range.

Context menu in ASP.NET Core Spreadsheet.

Context menu

The context menu improves user interaction with the Spreadsheet using a pop-up menu. It appears when a cell, row header, column header, or sheet tab is right clicked. In addition to built-in default menu items, you can add custom context menu items.

Row and column resizing in ASP.NET Core Spreadsheet.

Resize and autofit

The resize and autofit options help you adjust the row height and column width.

Undo and redo in ASP.NET Core Spreadsheet.

Undo and redo

The ASP.NET Core Spreadsheet provides an option to undo and redo changes made in a workbook. You can customize the limit of undo and redo operations.


Keyboard navigation in ASP.NET Core Spreadsheet.

Keyboard navigation

The ASP.NET Core Excel Spreadsheet ensures that every cell is accessible using a keyboard. Major features like selection, clipboard, and editing can be performed using keyboard commands alone; no mouse interaction is required. This helps in creating highly accessible applications using this control.

Accessibility and screen reader support in ASP.NET Core Spreadsheet.

Screen reader

The ASP.NET Core Excel-like grid view has complete WAI-ARIA accessibility support. The Spreadsheet UI includes high-contrast visual elements, helping visually impaired people have the best viewing experience. Also, valid UI descriptions are easily accessible through assistive technologies such as screen readers.

Built-in and customizable themes

Five built-in, SASS-based themes are available: Material, Bootstrap, Bootstrap 4, Fabric, and high contrast. Simplify theme customization either by overriding the existing SASS styling or creating custom themes using the Theme Studio application.

ASP.NET Core Spreadsheet themes.

Globalization and localization

Format dates and numbers in ASP.NET Core Spreadsheet.


The ASP.NET Core Spreadsheet enables users from different locales to use it by formatting the dates, currency, and numbering to suit their language preferences. It uses the internalization (i18n) library to handle number formatting.

Show right-to-left language in ASP.NET Core Spreadsheet.

Right to left (RTL)

Right-to-left rendering allows you to display the text and layout of the Spreadsheet from right to left. This improves the user experience and accessibility for RTL languages.

Localize ASP.NET Core Spreadsheet UI strings.


Localize all the strings used in the user interface of the ASP.NET Core Spreadsheet control. The control uses the localization (l10n) library to localize UI strings.

Supported browsers

The ASP.NET Core Spreadsheet works well with all modern web browsers: Chrome, Firefox, Edge, Safari, and IE11. It supports IE11 with the help of polyfills.

Supported web browsers for ASP.NET Core Spreadsheet.

ASP.NET Core Spreadsheet Code Example

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

@using Syncfusion.EJ2

@section ControlsSection{
    <div class="control-section">
          <ejs-spreadsheet id="spreadsheet" contextMenuBeforeOpen="createdHandler">
                    <e-spreadsheet-range dataSource="ViewBag.DefaultData"></e-spreadsheet-range>
                    <e-spreadsheet-column width="80"></e-spreadsheet-column>
                        <e-spreadsheet-column width="80"></e-spreadsheet-column>
                        <e-spreadsheet-column width="100"></e-spreadsheet-column>
                        <e-spreadsheet-column width="100"></e-spreadsheet-column>
                        <e-spreadsheet-column width="100"></e-spreadsheet-column>
public IActionResult Index()
        List<object> data = new List<object>()
               new { OrderId= "SF1001",  Product= "Laptop Backpack (Blue)",  OrderedDate= "02/14/2014",  OrderedBy= "Rahul Sharma",  Shipment= "Delivered"},
               new { OrderId= "SF1002",  Product= "Oppo F1 S mobile back cover",  OrderedDate= "06/11/2014",  OrderedBy= "Adi Pathak",  Shipment= "Delivered"},
               new { OrderId= "SF1003",  Product= "Tupperware 4 bottle set",  OrderedDate= "07/27/2014",  OrderedBy= "Himani Arora",  Shipment= "Pending"}
               new { OrderId= "SF1009",  Product= "Listerine mouthwash",  OrderedDate= "07/09/2014",  OrderedBy= "Siddartha Mishra",  Shipment= "Pending"},
               new { OrderId= "SF1010",  Product= "Protinex original",  OrderedDate= "10/31/2014",  OrderedBy= "Ravi Chugh",  Shipment= "Delivered"},
        ViewBag.DefaultData = data;
        return View();

Other supported frameworks

Spreadsheet is also available in Angular, React, Vue, and JavaScript frameworks. Check out the different Spreadsheet platforms from the links below,

Developer-friendly APIs

Developers can customize their UI and control its behaviors according to the end user’s requirement using the control’s rich set of client-side APIs.


Frequently Asked Questions

  • Seamless data analysis and visualization like in Microsoft Excel.
  • Compatibility with Microsoft Excel file formats.
  • Highly intuitive user interfaces.
  • Flexible data binding with support to use local and remote data source services.
  • Supports Freeze panes, Keyboard shortcuts and all the common Excel features.
  • One of the best ASP.NET Core Spreadsheet in the market that offers feature-rich UI to interact with the software.
  • Supports all modern browsers.
  • Mobile-touch friendly and responsive.
  • Expansive learning resources such as demos and documentation to learn quickly and get started with ASP.NET Core Spreadsheet.

You can find our ASP.NET Core Spreadsheet demo here.

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.

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