WCalligra Sheets is a free software spreadsheet application that is part of Calligra Suite, an integrated graphic art and office suite developed by KDE.
WGNU Oleo is a discontinued lightweight free software spreadsheet originally designed as a text-based spreadsheet using the curses library. The last development version of Oleo, 1.99.16, was released in 2001.
WGnumeric is a spreadsheet program that is part of the GNOME Free Software Desktop Project. Gnumeric version 1.0 was released on 31 December 2001. Gnumeric is distributed as free software under the GNU GPL license; it is intended to replace proprietary spreadsheet programs like Microsoft Excel. Gnumeric was created and developed by Miguel de Icaza, but he has since moved on to other projects. The maintainer as of 2002 was Jody Goldberg.
WLibreOffice Calc is the spreadsheet component of the LibreOffice software package.
WOrg-mode is a document editing, formatting, and organizing mode, designed for notes, planning, and authoring within the free software text editor Emacs. The name is used to encompass plain text files that include simple marks to indicate levels of a hierarchy, and an editor with functions that can read the markup and manipulate hierarchy elements.
WPyspread is a non-traditional spreadsheet. Cells in pyspread's grid accept expressions in the Python programming language. A cell can return any Python object, which allows calculations with vectors, matrices, fractions, arbitrary precision numbers and symbols. Therefore, pyspread follows an approach that is similar to the spreadsheet SIAG from Siag Office.
WSheetster is a GPL open-source Web Spreadsheet and a Java Application Server created by Extentech Inc. The product was created for the enterprise and small and medium-sized businesses as an Open Source alternative to closed document management systems.