James gives an overview of the powerful features in the X window system for running programs remotely. http://www.linuxplanet.com/linuxplanet/tutorials/857/1/
In this introductory column, Michael Hall explores the basics of GNOME: how to get it, how to install it, and how to tweak it. http://www.linuxplanet.com/linuxplanet/tutorials/2589/1/
This HOWTO, maintained by Hal Burgiss, tells how to improve ugly and unreadable X Window fonts. http://www.linuxplanet.com/linuxplanet/tutorials/3163/1/
This HOWTO describes how you can use the combination of X Display Manager (xdm, kdm and gdm) and XDMCP http://www.linuxplanet.com/linuxplanet/tutorials/3165/1/
Depending on the business and industry, spreadsheets can be anything from very simple lists used for sorting to kazillion cell http://www.linuxplanet.com/linuxplanet/tutorials/5230/1/