Apple Numbers '09 - Manual (Page 31)

Chapter 2 Creating, Saving, and Organizing a Numbers Spreadsheet 31
Here are ways to open an existing spreadsheet:
To open a spreadsheet from the Template Chooser, click “Open an Existing File” in the
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Template Chooser window, select the document, and then click Open.
To open a spreadsheet you’ve worked with recently, choose it from the Open Recent
pop-up menu at the bottom left of the Template Chooser window.
To open a spreadsheet when you’re working in one, choose File > Open, select the
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spreadsheet, and then click Open.
To open a spreadsheet you’ve worked with recently, choose File > Open Recent and
choose the spreadsheet from the submenu.
To open a Numbers spreadsheet from the Finder, double-click the spreadsheet icon or
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drag it to the Numbers application icon.
If you see a message that a font or file is missing when you open a spreadsheet, you
can still use the spreadsheet. Numbers lets you choose fonts to substitute for missing
fonts. Or you can add missing fonts by quitting Numbers and adding the fonts to your
Fonts folder (for more information, see Mac Help). To make missing movies or sound
files reappear, add them to the spreadsheet again.
Password-Protecting a Spreadsheet
When you want to restrict access to a Numbers document, you can assign it a
password. Passwords can consist of almost any combination of numerals and capital
or lowercase letters and several of the special keyboard characters. Passwords with
combinations of letters, numbers, and other characters are generally considered
more secure.
When you save a spreadsheet in iWork ’08 or Excel format, you can’t use password
protection, but when you export a spreadsheet as a PDF you can assign a password
to it.
Here are ways to manage password-protection in a Numbers spreadsheet:
To use a password-protected spreadsheet, open the spreadsheet, type the password
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when prompted, optionally select “Remember this password in my keychain,” and then
click OK.
If you incorrectly type the password twice, any hint defined when the password was
created is displayed.
To add a password to the spreadsheet, open the Document inspector and select
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“Require password to open” in the Document pane. Type the password you want to
use in the fields provided, and then click Set Password. A lock icon appears next to the
document title to indicate that your document is password protected.