Sheetster

**Sheetster**
Original author(s)	John McMahon
Developer(s)	Extentech, Inc.
Initial release	October 19, 2006 (1.0.0 Beta)
Stable release	Unknown (Unknown) [±]
Written in	Java
Operating system	Cross-platform
Available in	English
Type	Document management software
License(s)	Apache License v2.0
Website	Sheetster.com

Sheetster is a free open-source web-based spreadsheet viewer and editor with server capabilities. It can be used for free via the website, or a free downloadable Sheetster Server Community Edition can be had. A fee-based commercial Pro edition of the server software also exists.

Product history

Sheetster was introduced by Java development company Extentech Inc., created by John McMahon, who "identified the need for a web spreadsheet platform to be the foundation for use cases not currently possible in desktop applications."^[1] A beta 1.0.0 was released by the company in October 2006.^[1]

In May 2012, Extentech announced it had merged with partner Infoteria Corporation, promising "the products and services we have provided you in the past will continue."^[2]

Though you can download the software, it's neither clear what the current version is nor when it was released.

Features

The main features of Sheetster include^[3]:

classic Excel compatibility
granular security
REST data feeds
XSL transformations
data validation
import and export CSV, XML, and MHTML
concurrent edits
charting
chat
web scripting

Hardware/software requirements

There are no real software installation requirements for Sheetster as the Java Virtual Machine is included with the software for the Pro version. It's assumed to be the same for the free Community Edition.

Consult the installation page for more info.

Videos, screenshots, and other media

Screenshots of Sheetster can be found on OStatic.
To demo Sheetster, you essentially sign up for an account on the main page.
Documentation for Sheetster can be found here. Account registration may be needed to view some documents.