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SpreadJS by MESCIUS is a powerful JavaScript library that lets you build Excel-like spreadsheets within your web applications. It offers tables, charts, formulas, pivot tables, and more, all running within the browser. It works with major frameworks like Angular, React, and Vue, and offers Excel file import and export. SpreadJS empowers developers to create interactive dashboards, analyze data, and streamline workflows, all within the familiar spreadsheet interface.
The SpreadJS 17 release introduces the optional GanttSheet Add-On, a full Gantt implementation that works inside of SpreadJS. It seamlessly integrates with your existing spreadsheets, transforming them into clear and concise Gantt charts. This allows you to visualize tasks, dependencies, and progress at a glance, identifying potential bottlenecks and adjust schedules proactively. GanttSheet offers a flexible and intuitive may to manage tasks, sort data, customize calendar settings, and even import/export plans for smooth collaboration.
To see a full list of what's new in version 17, see our release notes.
SpreadJS is licensed per developer and includes 1 Year Maintenance (major and minor version releases and unlimited support phone calls). SpreadJS requires an Annual or Perpetual Deployment License. The GanttSheet Add-On is available at an additional cost, and requires a SpreadJS license. See our SpreadJS licensing page for full details.
For more information, visit our SpreadJS product page.

The ability to export to comma-separated values (CSV) from a spreadsheet control enhances interoperability and data accessibility. It seamlessly translates spreadsheet data into the ubiquitous CSV format, fostering effortless integration with a vast ecosystem of analytical tools, databases, and third-party applications. This democratizes your data, empowering users to leverage existing workflows and external expertise, enriching analysis, and maximizing the reach and impact of your data-driven insights.
Several WinForms spreadsheet components provide CSV export functionality, including:
For an in-depth analysis of features and price, visit our WinForms Spreadsheet Component comparison.

Data filtering and grouping are key spreadsheet features that allow users to manage and analyze large datasets efficiently. Filtering enables users to hide data that does not meet certain criteria, making it easier to focus on relevant information. Grouping clusters related data together, which can then be summarized with functions such as sum, average, and count. These features are vital for working with extensive spreadsheets, enabling users to simplify their view, and gain insights from specific subsets of data.
Several Angular Spreadsheet components provide data filtering and grouping support including:
For an in-depth analysis of features and price, visit our Angular Spreadsheet Component comparison.

Data Validation is a crucial feature for maintaining the integrity of data within a spreadsheet. It restricts the type of data or the values that users can enter into a cell. For example, a cell can be configured to only accept dates or numbers within a certain range. This minimizes input errors and ensures that data adheres to specified parameters, which is particularly important in scenarios where spreadsheets are used for data entry by multiple users or when the data feeds into critical business processes.
Several React Spreadsheet components provide data validation support including:
For an in-depth analysis of features and price, visit our React Spreadsheet Component comparison.

EPPlus is a powerful and versatile .NET library for managing and manipulating Microsoft Excel files using the Office Open XML (OOXML) format. It is a lightweight and efficient library that is easy to use and can be integrated into a wide range of applications. It allows developers to create, read and modify spreadsheets without dependencies on any other library. Features include pivot tables, styling, VBA/Form controls, conditional formatting, charts, tables, formula calculation, data validation, pictures/shapes, and more.
The v7.0.3 release adds support for .NET 8. This enables developers to easily create and manage spreadsheets while working with the latest iteration of Microsoft's .NET ecosystem.
To see a full list of what's new in v7.0.3, see our release notes.
For more information, see our EPPlus product page.