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Feature-Rich, Excel-Like Spreadsheet Editor for ASP.NET Core

  • Genuine Excel-style editing
  • Instant in-browser data processing & formula
  • Designed for enterprise-grade security
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4.5/5 900+ Reviews
4.5/5 900+ Reviews
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Why choose our ASP.NET Core Spreadsheet Editor?

Build secure, high-performance, Excel-like spreadsheet experiences directly in your ASP.NET Core applications without the complexity of building from scratch. The component offers built-in Excel-compatible formulas, WYSIWYG editing, and pixel-perfect import and export to ensure consistent layouts and familiar user experience. Designed for large datasets and enterprise needs, it delivers scalable performance, robust security, and faster development with minimal maintenance.

Experience full Excel-like editing firsthand: upload your own Excel files, experiment with formulas and functions, analyze data, format cells, and export your work as Excel files.

Get Started in Minutes

Follow these four steps to integrate the Spreadsheet into your ASP.NET Core web application.

1

Install the Spreadsheet Package

Install the Syncfusion ASP NET Core

Install-Package Syncfusion.EJ2.AspNet.Core -Version XX.X.X

2

Add the Tag Helper

Import the Syncfusion.EJ2 Tag Helper in the Pages/_ViewImports.cshtml .

@addTagHelper *, Syncfusion.EJ2

3

Add stylesheet, script resources, and register the Script Manager

Include the required stylesheet and script references, then register the Script Manager in Pages/Shared/_Layout.cshtml to apply proper layout and theme styling:

<head> 
   ... 
<!-- Syncfusion ASP.NET Core controls styles --> 
<link rel="stylesheet" href="https://cdn.syncfusion.com/ej2/33.2.3/fluent.css" /> 
<!-- Syncfusion ASP.NET Core controls scripts --> 
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js"></script>
</head> 
<body> 
   ... 
<!-- Syncfusion ASP.NET Core Script Manager --> 
<ejs-scripts></ejs-scripts> 
</body>

4

Add the Spreadsheet component

Add the Spreadsheet component tag helper in Pages/Index.cshtml and start building instantly.

<ejs-spreadsheet  id="spreadsheet" openUrl="https://document.syncfusion.com/web-services/spreadsheet-editor/api/spreadsheet/open" saveUrl="http…
</ejs-spreadsheet>

AI-Assisted Development

Build feature-rich spreadsheet experiences faster

Build robust spreadsheet applications faster with Syncfusion AI tools that transform requirements into scalable and reliable solutions.

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Agent Skills

Create accurate spreadsheet editor code with Syncfusion Agent Skills for faster development

Example Prompt Help me get started with a Spreadsheet in ASP.NET Core.

Explore Agent Skills

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AI Coding Assistant

Simplify spreadsheet development with AI that creates and troubleshoots code directly within your IDE.

Example Prompt Show me how to create a Spreadsheet component in ASP.NET Core.

Explore AI Coding Assistant

Enterprise-ready Spreadsheet editing

Built for speed and scale

Enjoy exceptional performance when editing, calculating, or navigating even the largest spreadsheets. The ASP.NET Core Spreadsheet Editor is powered by a high-performance engine that ensures smooth responsiveness and efficient interaction with large datasets.

  • Handles thousands of rows and columns with consistent UI responsiveness.

  • Optimized engine reduces recalculation overhead in complex workbooks.

  • Row and column virtualization enable seamless navigation without memory overhead.

Read Documentation

Performance for Extensive Data


Every cell, perfectly aligned

The ASP.NET Core Syncfusion® Spreadsheet Editor delivers true WYSIWYG fidelity ensuring that what you see is exactly what you get. Every element is rendered with high accuracy, maintaining consistent appearance across formats like Excel, CSV, and PDF.

  • Advanced view controls such as freeze panes and split views.

  • Accurate print layouts with configurable page setup options.

  • Pixel-perfect rendering of fonts, borders, and formula results.

Read Documentation

Edit with Confidence in the Browser


Compute with confidence

Integrate advanced analytics into your applications with a comprehensive set of Excel-compatible formulas. The ASP.NET Core Syncfusion® Spreadsheet Editor delivers accurate, real-time calculations powered by a robust engine, ensuring reliable results for both simple and complex data scenarios.

  • Supports financial, logical, lookup, and statistical functions.

  • Handles cross-sheet references and named ranges seamlessly.

  • Offers automatic and manual calculation modes for performance control.

Learn more about formulas

Excel-like Formulas & Real-time Calculation Engine


Security you can trust

Ensure the safety of your spreadsheet data with built-in, enterprise-grade security. The ASP.NET Core Syncfusion® Spreadsheet Editor keeps all data within your application environment, enabling secure and compliant workflows while maintaining full control over how data is accessed and used.

  • Workbook and worksheet protection with password enforcement.

  • Secure client-side or server-side data processing options

  • Fine-grained access control for editing, formatting, and structure changes.

Read Documentation

Secure Access and Actions with Password Protection


Comprehensive Spreadsheet capabilities

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Data sorting and filtering

Quickly organize and analyze data with multi-level sorting and customizable filters. Simplify data exploration and manage structured datasets efficiently.

See it in action

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Image & Chart embedding

Enhance your spreadsheets by embedding images and dynamic charts directly into cells. Visualize data effectively and create more interactive reports.

See it in action

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Interactive Ribbon UI

Deliver a familiar, Excel-like editing experience with a modern tabbed ribbon interface. Supports contextual menus, keyboard navigation, and customizable commands for improved productivity.

See it in action

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Data Connectivity and Export

Seamlessly integrate and manage data from local files, APIs, or external sources. Import and export Excel, CSV, and PDF formats while preserving formatting, formulas, and print-ready layouts.

See it in action

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Find & Replace

Quickly search and update spreadsheet data by values or formulas. Use advanced options like case match and scope control, and perform fast bulk edits with Replace or Replace All.

See it in action

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Contextual Menus & Shortcuts

Improve spreadsheet efficiency with right‑click menus and keyboard shortcuts. Access context‑aware actions for cells and use quick keys to speed up editing, navigation, and formatting tasks.

See it in action

Advanced Spreadsheet operations

Elevate spreadsheet performance and control with powerful built-in features. The Syncfusion® ASP.NET Core Spreadsheet Editor equips developers and users to manage complex data workflows efficiently and securely.

Sheet and workbook protection.

Sheet & workbook protection

Secure spreadsheets using password protection. Restrict actions like editing, deleting, and inserting data, and selectively unlock cells for controlled collaboration.

See it in action

Conditional formatting.

Data validation & conditional formatting

Maintain data accuracy with validation rules and apply visual logic using conditional formatting. Highlight trends, flag errors, and guide user input with intuitive visual cues.

See it in action

API-driven file operations.

API-driven file operations

Programmatically open, save, and manage spreadsheet content. Use built-in APIs to load Excel or CSV files, bind dynamic data, and export results, streamlining backend workflows.

See it in action

Accessibility and global readiness

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Keyboard navigation

Interact with every cell using keyboard shortcuts alone. Perform selections, edits, and clipboard actions without a mouse for highly accessible workflows.

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Screen reader compatibility

Fully WAI-ARIA compliant, the ASP.NET Core Spreadsheet Editor ensures all UI elements and cell content are readable by assistive technologies. High-contrast visuals enhance visibility for users with low vision.

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RTL and localization

The ASP.NET Core Spreadsheet Editor supports right-to-left rendering and localization for global audiences. Format dates, currencies, and numbers according to local preferences.

Industry-tailored solutions

The ASP.NET Core Spreadsheet Editor empowers professionals across diverse industries to organize, analyze, and share data right within the browser. Engineered for precision, flexibility, and secure data handling, it transforms how teams collaborate and work with spreadsheets.

Get Started Now

No credit card required.

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Finance and accounting

Finance teams can handle intricate financial models, budgets, and forecasts using built-in formulas, conditional formatting, and data validation—ensuring accuracy and compliance with regulations in every calculation.

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Healthcare and research

Healthcare analysts can safely capture and evaluate patient metrics, medical data, or lab results using customizable spreadsheets with advanced formulas and HIPAA-compliant protection features.

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Education

Educators and learners can manage grades, attendance logs, or research data in a dynamic spreadsheet setting, making tracking, reporting, and learning more intuitive.

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Sales and marketing

Sales and marketing professionals can monitor KPIs, campaign metrics, and revenue growth using dynamic data tables and charts. They can make data-driven decisions without switching tools.

See Why Developers Love Syncfusion

These real-time stories shows the impact of our Spreadsheet Editor

The best way to showcase our commitment is through the experiences and stories of those who have used our Spreadsheet Editor.

See Real Success Stories

Developers around the world trust Syncfusion’s Essential Studio to simplify complex projects and speed up delivery. With a vast library of UI controls, powerful SDKs, and reliable support, Essential Studio helps teams build enterprise-ready applications with confidence.

Read Our Customer Stories

Endless possibilities with one editor

Whether you’re building financial dashboards, managing inventory, analyzing research data, or creating interactive forms, the Spreadsheet Editor adapts to your needs. Its powerful features, flexible architecture, and enterprise-grade performance make it the go-to solution for data-driven applications across industries.

Try it free now

No credit card required.

Endless Possibilities with One Editor

ASP.NET Core Spreadsheet Editor FAQs

If you’re new to Spreadsheet Editor or have questions, our FAQ will help you learn more about its features and capabilities.

Frequently Asked Questions

Elevate your web and desktop applications to Excel-like powerhouse. The Syncfusion ASP.NET Core Spreadsheet empowers you with:

  • 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.

  • Support for freeze panes, keyboard shortcuts, and all the common Excel features.

  • Support for all modern browsers.
  • Touch-friendly and responsive UI.
  • Expansive learning resources such as demos and documentation to help you get started quickly with Spreadsheet.

The ASP.NET Core Spreadsheet is more than just a control; it’s a feature-rich solution for organizing and analyzing data in tabular formats. It provides all common Excel features, including data binding, selection, formulas, editing, formatting, resizing, sorting, importing, and exporting.

No, this is a commercial product and requires a paid license. Syncfusion provides a trial period for evaluation. However, a free community license is also available for companies and individuals whose organizations have less than $1 million USD in annual gross revenue, 5 or fewer developers, and 10 or fewer total employees.

Comprehensive documentation, code samples, API references, and community forums are available to support developers at every stage of integration.

Use the Save As option in the File menu or the save method. The Spreadsheet control lets you save or export worksheets in Excel (XLSX, XLS), CSV, and PDF formats.

Export Documentation

You can find our ASP.NET Core Spreadsheet demo, which demonstrates how to render and configure the Spreadsheet.

The ASP.NET Core Spreadsheet supports JSON, OData, WCF, and RESTful web services with the help of a data manager.

Learn more about formatting.

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

Syncfusion offers a feature-rich, high-performance Spreadsheet with reliable support, flexible licensing, and seamless integration-making it a superior choice over many alternatives.

Yes, the Spreadsheet control supports conditional formatting for formatting a cell or range of cells based on applied conditions. You can turn conditional formatting on or off by using the allowConditionalFormat property.

Conditional Formatting documentation

Resources

Learn more about our ASP.NET Core Spreadsheet Editor

Explore demos, KB articles, and documentation to get the most out of our ASP.NET Core Spreadsheet Editor .

Documentation

Explore guides, APIs, and quick-start tips

Example demos

See live use cases in action

Community forum

Ask, share, and connect with peers

Knowledge base articles

Find solutions and best practices fast

Contact support

Get expert help when you need it

Feature requests and bug reports

Track issues and suggest improvements

Trusted by the Industry, Recognized for Excellence

We don’t just say we’re great—independent awards and industry leaders back it up. We are honored to be recognized for our product innovation, customer support, and overall excellence by top organizations worldwide.

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