Spreadsheets News

Build Collaborative Spreadsheets in JavaScript Apps

February 16, 2026
Attend the MESCIUS CodeClinic Live Webinar to Explore the Collaboration Server add-on to SpreadJS.

SpreadJS is a complete enterprise JavaScript spreadsheet solution used to create financial reports and dashboards, budgeting and forecasting models, scientific, engineering, healthcare, education, science lab notebooks, and other similar JavaScript business applications. It leverages a high-speed calculation engine with over 500 Excel built-in functions in 19 languages to deliver true Excel-like spreadsheet experiences with zero dependencies on Excel and full support for React, Vue, Angular, and TypeScript.

On Thursday, February 26th at 11:00 AM EST, MESCIUS (formerly GrapeCity) will be presenting a CodeClinic Live Webinar highlighting the new Collaboration Server as a production-ready solution for real-time, multi-user spreadsheet editing in enterprise JavaScript applications. During this webinar, SpreadJS Product Manager Chris Bannon and Product Marketing Manager Mackenzie Albitz will take you through the following key takeaways:

  • How the SpreadJS Collaboration Framework enables low-latency, conflict-free editing in JavaScript applications.
  • The architecture behind the Sheets Collaboration Optional Add-On and how it converts workbook changes into synchronized operations.
  • How real-time presence, selections, and multi-user awareness are implemented.
  • How collaborative undo/redo works in concurrent editing scenarios.
  • Permission models for balancing collaboration with control in enterprise apps.

Register for the Live Webinar today and mark your calendar for February 26th.

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 optional Add-ons are available at an additional cost, and require a SpreadJS license. See our SpreadJS licensing page for full details.

For more information, visit our SpreadJS product page.

Insert Columns Without Breaking Formulas

February 12, 2026
Easily add new columns anywhere in a worksheet while automatically updating cell references and preserving existing calculations.

Inserting columns in a spreadsheet allows users to expand worksheets dynamically while preserving existing data and formulas. This capability is essential for scenarios where datasets evolve over time, such as adding new fields, categories, or calculated values. A well-implemented insert columns feature ensures that cell references, formatting, and formulas adjust automatically, helping maintain data integrity and reducing the risk of errors during updates.

Several ASP.NET Core spreadsheet controls offer the ability to insert columns including:

  • DevExpress ASP.NET Core Spreadsheet (part of DevExpress ASP.NET and Blazor) enables users to insert one or multiple columns at any position in a worksheet, automatically updating formulas.
  • Telerik UI for ASP.NET Core Spreadsheet (part of Telerik UI for ASP.NET Core) allows columns to be inserted through both the user interface and APIs, ensuring that cell references are preserved.
  • Syncfusion ASP.NET Core Spreadsheet (part of Syncfusion Essential Studio Enterprise) provides options to insert columns with full support for formula recalculation.

For an in-depth analysis of features and price, visit our ASP.NET Core spreadsheet controls comparison.

Compare ASP.NET Core Spreadsheet Controls

Unlock Powerful Analysis with Formula-Driven Logic

January 30, 2026
Combine calculation engines, cross-sheet references, and sparklines to transform spreadsheets into reliable tools for data analysis and reporting.

Formulas, calculations, and logic features form the analytical core of spreadsheet components, enabling data to be transformed into meaningful insights. These capabilities allow spreadsheets to move beyond static data entry by supporting dynamic calculations, rule-based behavior, and real-time feedback as data changes. A robust implementation ensures accuracy, consistency, and performance, making spreadsheets suitable for everything from simple models to complex, enterprise-grade analytical scenarios.

Common features include:

  • Formula / function support provides a comprehensive library of built-in functions and calculation operators to perform mathematical, statistical, logical, and financial operations.
  • Cross-worksheet calculations enable formulas to reference data across multiple sheets, supporting complex models and consolidated reporting.
  • Conditional formatting applies visual rules to cells based on their values or formula results, helping users quickly identify trends, exceptions, or thresholds.
  • Sparklines offer compact, in-cell visualizations that display data patterns and changes at a glance without requiring full charts.
  • Data validation enforces rules on data entry, such as value ranges or list constraints, to help maintain data integrity and reduce errors.

For an in-depth analysis of features and price, visit our React spreadsheet components comparison.

Explore React Spreadsheet Features

Add Clarity with Contextual Spreadsheet Comments

January 30, 2026
Strengthen collaboration with cell comments and tooltips that clarify data and reduce misinterpretation across teams and shared spreadsheets.

Cell comments and tooltips in spreadsheets allow users to attach contextual information to individual cells, displayed on hover or focus without altering the sheet’s layout. They help clarify data, explain formulas and assumptions, and provide guidance for correct data entry, reducing errors and misinterpretation. By keeping explanations close to the data, comments and tooltips improve collaboration, preserve knowledge, and make complex spreadsheets easier to understand and maintain. Common use cases include documenting calculation logic, adding validation instructions, leaving reviewer feedback, explaining exceptions in reports, and supporting onboarding for new users working with shared spreadsheets.

Several .NET Spreadsheet controls offer cell comments/tooltips including:

For an in-depth analysis of features and price, visit our .NET Spreadsheet controls comparison.

Compare .NET Spreadsheet Controls

Embed AI Logic Directly in Spreadsheet Formulas

January 14, 2026
Document Solutions for Excel, .NET Edition v9.0.0 adds built-in AI functions for querying, translating, and sentiment analysis.

Document Solutions for Excel, .NET Edition by MESCIUS is designed to enable developers to create and manipulate Microsoft Excel documents programmatically within .NET applications. It provides a robust API for interacting with Excel spreadsheets, allowing developers to automate tasks such as data extraction, formatting, and generation of reports. The framework offers comprehensive support for various Excel features, including formulas, charts, conditional formatting, and data validation. It also provides tools for handling large datasets and optimizing performance, making it suitable for both small-scale and enterprise-level applications.

The Document Solutions for Excel, .NET Edition v9.0.0 update introduces a major new capability: AI-powered functions that integrate large language models directly into the spreadsheet formula engine. Developers can now use AI.QUERY to build dynamic prompts from cell values, AI.TRANSLATE to localize ranges into target languages, and AI.TEXTSENTIMENT to classify text as positive, negative, or neutral, all within formula syntax. These functions support both template use and automation scenarios, enabling more intelligent document workflows.

To see a full list of what's new in v9.0.0, see our release notes.

Document Solutions for Excel is licensed per developer and is available in several license options for differing distribution needs. Team licenses are also available for multiple developers within the same organization. See our Document Solutions for Excel, .NET Edition licensing page for full details.

Document Solutions for Excel, .NET Edition is available to buy in the following products: