After more than 9-years of handling the most demanding spreadsheets from enterprise customers worldwide, ExtenXLS is the most robust Java spreadsheet toolkit available.

ExtenXLS API docs

ExtenXLS 8
Java Spreadsheet SDK

Optimized for speed and performance with maximum support for legacy and new Excel formats.

Features include:

NEW! -- Import Spreadsheets directly from CSV files
NEW! -- Optimized XLSX memory and performance algorithms
NEW! -- ConditionalFormatHandle Object with support for Conditional Formatting
NEW! -- PrinterSettingsHandle controls printing from Excel
NEW! -- Output to PDF files
NEW! -- Totally revamped Sample code files
NEW! -- Improved Documentation and API methods
NEW! -- Improved complex XLSX handling and inter-format conversions
NEW! -- Numerous bug fixes

Integrates seamlessly with Sheetster Web2.0 Document Automation Server High performance, up to a hundred times faster than alternative technologies

Create Powerful Visually Compelling Spreadsheets with Automation
Easy API, makes novice programmers into spreadsheet gurus
Insert and Extract JPG, GIF, and PNG images
Allows total control of image sizing and position
Images automatically shift down when rows are inserted

Complete Control Charting Engine -- outputs to VML for accurate printing.
Insert, delete and modify pie, bubble, stack, 3d charts, and more!
Total control over chart series, titles, formatting, size and positioning
XML chart serialization, allows copying charts between workbooks and eases XSLT projects

Web2.0-enabled APIs enable great Web Apps, WOA, and SOA projects
Output spreadsheet objects to JSON formatting with a single line of code
WebWorkBook messaging sessions allow for collaborative messaging and data updates between concurrent spreadsheet users

And much more...
Workbook search-and-replace
Java Swing Spreadsheet Component
Column auto-sizing
Fast row inserts with insert object array as row


Reusing Business Logic Trapped in Spreadsheets
ExtenXLS maximizes the ROI from Spreadsheets, and gives you Spreadsheet Management that developers can embed in any Java application.

ExtenXLS provides an easy and compelling API to Spreadsheets giving you the ability to read and create almost any Excel-compatible Spreadsheet.

Reusing Formulas with a single method call allows you to develop user-maintainable business logic embedded in your applications. Users with basic Excel skills can now maintain formulas in Excel which can then be read using ExtenXLS, accessing the business logic.

Governance and Control

When your applications re-use centralized spreadsheets, you eliminate the versioning and compliance nightmares of emailing spreadsheets around an organization.

Compliance can be ensured with event-driven versioning and logging, as well as cell and sheet-level locking with password protection.

Office Compatibility
With this mature, commercial-grade class library, you can be sure that ExtenXLS will not corrupt your Excel spreadsheets, and can handle any input Excel files no matter how complex. Written entirely in Java, ExtenXLS is compatible with any operating system running Java 1.4 or later.

Support
With unmatched tech-support, scalability, ease of use, and features, ExtenXLS is the spreadsheet SDK of choice for dozens of the Global 2000 list of companies, including IBM, JPMorgan, BofA, Merrill Lynch, and Toyota.

Products

ExtenXLS Java Excel Spreadsheet SDK
OpenXLS Java Spreadsheet SDK (GPL)
Sheetster Web Spreadsheet Server
Sheetster Pro Spreadsheet Server
Sheetster Hosted Web Spreadsheet
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