Open Source JavaScript Spreadsheet Software for Windows

DocsFree is the first and only open source java-based Docs App Server. DocsFree is offered as an alternative to proprietary Docs solutions MS Office Online and Sharepoint, as well as to proprietary Docs SaaS offerings such as Google Docs.

SameDesk is a common workspace for web applications. Supporting applications written in AJAX, Java, Flash, & Server-generated HTML, it lets applications across domains work together for the users via a familiar window GUI delivered via web browsers.

Sheetster is a web-based spreadsheet editor and viewer. It can import and export the XLS and XLSX file formats and nearly the full range of Excel formula functions are supported. Most basic features are implemented as well as some of the more advanced ones. The user interface is written entirely in JavaScript and its server-side API is pure Java based on the OpenXLS spreadsheet engine. Neither the client nor the server needs Excel or any browser plugins. Sheetster is primarily intended for developers who want to integrate spreadsheets into their web applications. Towards that end it provides a server-side API for document storage connectors and a rich REST API for manipulating open spreadsheets. It can also be deployed stand-alone by a website administrator to provide spreadsheet editing with a rudimentary CMS.

An OpenSource Javascript Spreadsheet project based on Qooxdoo javascript framework. This component is also a part of X4View Java Framework (see www.reasonsphere.com)