What are the best free and open source alternatives? Document, spreadsheet, and presentation applications.

The new suite offers enhanced compatibility with Microsoft Office, including clients using Microsoft Word, Microsoft Excel, and Microsoft PowerPoint a Workspace Manager, which allows users to easily adjust the user interface to meet their needs, including a setup that places toolbars and menu items exactly where they would find the Microsoft Office equivalent Compatibility Toolbars, which open, edit, print and save Microsoft Office files, with which users can publish documents to PDF, the Web, XML, Microsoft Word, Microsoft Excel or Microsoft PowerPoint Upgrade Installation which, during installation, users can choose to upgrade their existing installation without first uninstalling their previous version OfficeReady Browser, a template browser that manages templates Wireless Office Suite, powered by ZIM Mobile phones and office suites, to provide mobile phones with Microsoft Outlook e-mail and calendar functionality as well as instant messaging support for format-rich documents navigation control for long documents Microsoft Outlook integration publish to PDF CrossTab Reports in Quattro Pro and integrated graphics tools that let users enhance word processing documents, spreadsheets and presentations with 3D charts, tables and clipart images, as well as user-created designs.Corel WordPerfect Office is an all-in-one office suite and word processing software. The new suite is aimed at small-to-medium sized businesses and consumers, as well as the specific compatibility requirements of government and legal customers. The suite includes WordPerfect for word processing, Quattro Pro for spreadsheets and Presentations for multimedia slide show, as well as an address book for managing contacts, the new WordPerfect Wireless Office Suite, powered by ZIM, and the new WordPerfect OfficeReady template browser, a platform for managing WordPerfect Office templates including 40 new templates bundled with the suite. Corel has announced that WordPerfect Office 12, the newest version of its office suite, will be released in April.

Corel wordperfect office suite