Microsoft Office

Protecting Your Work 31
FIGURE 31.4
The Allow Users To Edit Ranges dialog box.
Workbook Protection
Excel provides three ways to protect a workbook:
n Require a password to open the workbook
n Prevent users from adding sheets, deleting sheets, hiding sheets, and unhiding sheets
n Prevent users from changing the size or position of windows
I discuss each of these methods in the sections that follow.
Requiring a password to open a workbook
Excel lets you save a workbook with a password. After doing so, whoever tries to open the workbook must
enter the password.
To add a password to a workbook:
1. Choose Office ➪ Prepare ➪ Encrypt Document. Excel displays the Encrypt Document dialog
box shown in Figure 31.5.
2. Type a password and click OK.
3. Type the password again and click OK.
4. Save the workbook.
NOTE
You need to perform these steps only one time. You don’t need to specify the password every
time you resave the workbook.
To remove a password from a workbook, repeat the same procedure. In Step 2, however, delete the existing
password symbols from the Encrypt Document dialog box, click OK, and save your workbook.
Figure 31.6 shows the Password dialog box that appears when you try to open a file saved with a password.
543