Open Source C 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++.

XonGrid is a free Excel library of functions to perform 1D, 2D, 3D, 4D and arbitrary dimension (ND) interpolations from scattered data.

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.

XLW is a C++ wrapper for the Excel C API described in the Microsoft Excel 97 Developer's Kit. It makes xll programming automatic. Its powerful interface will empower your C, C# or C++ numerics by embedding them in Excel just like the built-in functions.

Read data from Excel 97+ spread sheets without Microsoft! Provides an API to write applications that read Excel documents. The xlreader tool converts data to tab delimited, CSV or SQL inserts. Written in C. Based on the the Java version by Andrew Khan.

This is a simple utility to track the amount of time a PC is used. It can the used to determine 1. whether PCs are being used optimally, e.g. internet cafe's. 2. productivity (similar to punchcards). 3. sleep/wake cycles or bipolar cycles.

ErgoTabcalc is a general calculation and report system. Calculation sequences are stored in the database. These sequences are made from simple operations on data, eg, add two table columns, or sort a table. This is similar to relational algebra.

Fireworkz combines the features of Wordz (a word processor that you can use to write letters, reports, books, invitations, shopping lists, schedules and other documents) and Resultz (a spreadsheet that you can use to perform calculations, analyse figures, and produce colourful charts) enabling you to do even more; incorporate live results in your reports, or perform an automatic mail-merge to your friends or customers. If you are using Microsoft® Windows®, Linux or macOS, and don't know what RISC OS is, you may be better off using LibreOffice!

PipeDream 4 can be used for word processing: to create letters, reports, invitations, film scripts and books. You can also use PipeDream 4 as a spreadsheet: to create ledgers, simple shopping lists, complex scientific models and cash flow forecasts. You can even use PipeDream 4 as a database for storing parts lists, names and addresses, details of personal collections and mark sheets. PipeDream 4 requires RISC OS 3.1 or later to run. If you only have RISC OS 2.0 or 2.01, PipeDream 3 is the one for you.

A traditional spreadsheet application for terminal based sytems.

Concalc is a console spreadsheet program for windows written in dev-c++ (mingw) what has all the most common features, all files are available and fully working from the moment when this project was created on SourceForge, includes FAQ.

mtCellEdit is a lightweight spreadsheet program that is designed to handle simple day to day tasks. I have put the most important facilities I want into a small customized program which means I can avoid the problems of larger programs such as slow operating speeds and overcomplicated user interfaces.