Key to Instructions To help readers follow the instructions in this article, we used two different typefaces: Boldface type is used to identify the names of icons, agendas and URLs. Sans serif type shows commands and instructions users should type into the computer and the names of files.

A. The extension .rtf , which stands for Rich Text Format , maintains a document’s formatting. Use .rtf (see screenshot below) if you don’t know what version of Word your recipients have or whether they have Word or even Windows.

In my view the biggest advantage of .rtf is that it doesn’t retain any imbedded macros, which makes it immune from catching and spreading viruses.

The other useful format is .txt , shorthand for Plain Text , which saves just the text in the document with no formatting. If you need to make a document as small as possible to transmit it faster over the Internet and formatting is not important, save it as .txt .

A. The reason for the gap can be summed up this way: Last year consumers bought 700 million cell phones but only 50 million laptops. On top of that, phones and some PDAs generate big wireless connection fees. Because the potential profits from them far outstrip those from laptops, they get more attention from manufacturers.

But that’s beginning to change. Here are some advances for laptops coming down the pike:

Always-on small screens. Tomorrow’s laptops will mimic the clamshell-style cell phones, which have a second, smaller screen on the outside that displays basic information such as time, date, caller identification and connection accessibility.

Small laptops with phones. In the next year or two, we should begin to see ultrasmall laptops that have built-in cell phones.

Touch-screen laptops. Longhorn, the code name for Microsoft’s next operating system, will be able to handle inputs from a stylus or finger la tablet PCs.

Better battery monitors. Those electricity-reserve gauges on today’s laptops are useless; they tell you 20 minutes of power remain when your laptop’s about to black out or report no power is left when you have an hour in reserve. Late this year or early next, expect to see gauges that have an accuracy within 1%.

While we’re on the subject, here are some other advances we’ll start seeing in all computers:

Less reliance on disk drives. Microsoft is urging laptop and desktop makers to add power-efficient flash memory drives to store often-used programs. Less reliance on spinning power-hungry hard drives will shorten computers’ start-up time—eventually to nearly instantly.

Dual chips that run faster. Manufacturers of computers’ central processing chips—the computer’s brain—are introducing a new design that packages together two chips, each running independently of the other. The chips divide the processing of a command between them, each solving part of it, and then forward the completed solution. This parallel processing results in a much faster computer. The dual chips are being installed in high-power server computers now and in a year will be introduced in all other ones.

A. You must have accidentally held down the Shift key when you clicked on File . When you do that, Close changes to Close All (see screenshot below).

Bonus: In Word, when you hold down the Shift key and click on File , Save changes to Save All (see screenshot below).

Q. Is there a way to command Excel to highlight all the cells in a worksheet that contains formulas?

A. Sure. Just click on Edit , Go To and then Special , which is at the bottom of the screen.

That opens the Go To Special screen (see screenshot below). Click on Formulas .

When you click on OK , the cells that contain formulas will be highlighted in dark blue and look like this:

A. What you want to do is create a handy screen display that shows all the shortcut function keys available at the moment, depending on what you are doing at that time in that application. Interestingly, Word can do that, yet for some reason Microsoft hides that function and gives you no hint where to find it. Even if you access Help (F1), there’s no indication the tool exists.

To get it, go to Tools , Customize , click on the Toolbar tag and cursor down to Function Key Display (see screenshot). Check the box next to it and click on Close .

When you return to Word, you’ll see a toolbar at the bottom of your screen that looks like the screenshot below. To evoke the displayed commands, click on an icon or press one of the function keys.

As you work along in Word, you’ll notice from time to time the assortment of function keys will change depending on what you’re doing.

STANLEY ZAROWIN, a former JofA senior editor, is now a contributing editor to the magazine. His e-mail address is zarowin@mindspring.com .