Office

Votes: 14
spreadsheet application for GNOME - main program
Gnumeric is a spreadsheet application that interoperates well with other spreadsheets. It comes with plugins that enable it to deal with commonly used spreadsheet file formats.
The following formats can be imported and exported: - Microsoft Excel 2007 (.xlsx); - Microsoft Excel 97/2000/XP (.xls); - Microsoft Excel 95 (.xls); - OASIS XML, OpenOffice.org XML, StarOffice (.sxc); - Comma/Character Separated Values (.csv); - Data Interchange Format (.dif); - Applix version 4 (.as).
Additionally, the following formats can be imported: - GNU Oleo (.oleo); - Linear and integer program expression format (.mps); - Lotus 1-2-3 (.wks, .wk1); - MS MultiPlan SYLK (.sylk); - WordPerfect family "Plan Perfect" (.pln); - Quattro Pro (tm); - XSpread or SC; - XBase (.dbf).
Gnumeric can export to LaTeX 2e (.tex), TROFF (.me) and HTML as well.
Gnumeric should be easy to use, in particular for users familiar with Excel.
Gnumeric is a GNOME application. GNOME (GNU Network Object Model Environment) is a user-friendly set of applications and desktop tools to be used in conjunction with a window manager for the X Window System.

Votes: 28
Search Contacts, Conversations and Calendar
Query multiple words, a phrase enclosed in quotes use +/- for +MUST_INCLUDE -MUST_NOT_INCLUDE words. You can define a time frame for search in calendar and conversations or select the calendarevent type (todo, note, events) to search for.
Votes: 46
International dictionary written using Qt4
QStarDict is a modern international dictionary written using Qt4.
It is a StarDict clone written with using Qt4. It can use StarDict DICT files as a word database for translation. QStarDict supports plugins.
Votes: 2
Simple application for planning your tasks using a tree as the main tool.
This is an unstable release with new features: * List of tasks sorted by planned time. * Priorities. * Time counters. * Search by tasks' text fields. Main features of the stable version (0.1.3): * Tasks tree with tasks, subtasks and dependencies. * Task can have planned times for start and finish, and total amount of time required to complete the task. * Task can be marked completed by a single mouse click (or tap) on the tree, but only when all of its subtasks and dependencies are completed. * List of tasks can be saved to HTML file (for printing etc.). Planned features include: * Transparent synchronization between desktop and mobile computers. * More complex relations between tasks. * Calendar view. * Improved look and feel, more informative icons. * And much more. If you want to speed up the development, just become a sponsor.;)
Votes: 11
eBook reader that supports the popular ePub-format.
MeBook is an eBook reader that supports the ePub-fileformat. Features include feedbooks.com as searchable catalog, annotations, bookmarks, both scroll and page views and a finger-friendly UI.