Open Source Spreadsheet Software

Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.

A multiplatform C++ library for dynamic generation of Excel .xls files containing multiple worksheets. Unlike .csv files, these can be directly opened by Excel and thus provide an excellent way to output large data sets that require further analysis. To see the latest changes, select "Files" and view the README text displayed at the bottom of that pane. IMPORTANT: Major changes are contained in the current SVN source. If you have time please try to use it or the xlslib-package-2.4.0b1.zip archive, and enter bug reports on any problems! Changes: - library specific strings now in their own namespace - iOS Objective-C library - most project files updated (MSVS etc) - C bridge now supports formulas Note: there is a related SF project, libxls, to read Excel files.

Narrative is a Mac OS X native plotting framework written with the Cocoa API. It is already capable (see, e.g., www.trade-strategist.com), but will evolve into a complete OO solution to plotting in Cocoa and GNUStep.

The Objectsheet is a visual analytical tool for structured data that is less error-prone than a traditional spreadsheet. Instead of a "large grid of cells and scattered formulas", the Objectsheet uses finite-sized tables, Javascript objects, and templated formulas, formats, and styling, where you can easily add functionality using javascript code.

Ocular is a spreadsheet written entirely in python. Cell contents are evaluated by python after any standard spreadsheet coordinates are parsed. This allows the full Monty from Python to be implemented in a visual environment.