WordPerfect is a proprietary word processing application, now owned by Corel. Bruce Bastian, a Brigham Young University (BYU) graduate student, and BYU computer science professor Dr. Alan Ashton joined forces to design a word processing system for the city of Orem's Data General Corp. minicomputer system in 1979. Bastian and Ashton kept the rights to the WordPerfect software they designed for Orem, deciding to market it through their own com...
Read more »

Gnumeric is a spreadsheet program that is part of the GNOME Free Software Desktop Project and has Windows installers available. It is distributed as free software under the GNU GPL license. It is intended to be a replacement for proprietary spreadsheet programs such as Microsoft Excel, which it broadly and openly emulates. Gnumeric was created and developed by Miguel de Icaza, but he has since moved on to other projects. The current maintai...
Read more »

KSpread is a free software spreadsheet application that is part of KOffice, an integrated office suite for the KDE Desktop Environment.

Among KSpread features are multiple sheets per document, assorted formatting possibilities, support for more than 300 built-in functions, templates, chart, spell-check, hyperlinks, data sorting and scripting with Python, Ruby and JavaScript.

KSpread's native file format has been OpenD...
Read more »

Microsoft Excel is a spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables and a macro programming language called VBA (Visual Basic for Applications). It has been a very widely applied spreadsheet for these platforms, especially since version 5 in 1993. Excel forms part of Microsoft Office. The current versions are Microsoft Office Excel 2010 ...
Read more »

OpenOffice.org Calc is the spreadsheet component of the OpenOffice.org software package.

Calc is similar to Microsoft Excel, with a roughly equivalent range of features. Calc is capable of opening and saving most spreadsheets in Microsoft Excel file format. It provides a number of features not present in Excel, including a system that automatically defines series for graphing based on the layout of the user's data. Calc is also ...
Read more »