1,2 "TAB" -sort by "ext", 3 "TAB" - sort by "name"

thunar

File Manager for Xfce

Thunar is the file manager designed to be the default file manager for the Xfce desktop environment. It has been designed to be fast and easy to use.

samba

SMB/CIFS file, print, and login server for Unix

Samba is an implementation of the SMB/CIFS protocol for Unix systems, providing support for cross-platform file and printer sharing with Microsoft Windows, OS X, and other Unix systems. Samba can also function as an Active Directory or NT4-style domain controller, and can integrate with Active Directory realms or NT4 domains as a member server.
opened project

netbeans

Extensible Java IDE

Integrated Development Environment for software developers. It supports development of desktop, enterprise, web, and mobile applications. Package includes the Base IDE, Java Development Tools and Plug-in Development Tools. Support for PHP, Ruby, C/C++, Java EE and others can be added.
from version 0.67-2 on Kubuntu

putty

Telnet/SSH client for X

This is the Unix port of the popular Windows SSH client, PuTTY. It supports flexible terminal setup, mid-session reconfiguration using Ctrl-rightclick, multiple X11 authentication protocols, and various other interesting things not provided by ssh in an xterm.
fantasy turn-based strategy game (metapackage)

wesnoth

fantasy turn-based strategy game (metapackage)

This metapackage pulls in the main Wesnoth package which allows you to play using the latest stable version. If you only want to play a few official campaigns, multiplayer games over the network with other players, user-made add-ons, and/or without music, install this package without recommended packages.
Tools for the Hughski Colorimeter

colorhug-client

Tools for the Hughski Colorimeter

The Hughski ColorHug colorimeter is a low cost open-source hardware sensor used to calibrate screens.