Advanced Office Password Recovery (or
AOPR for short) is a program to recover
the lost or forgotten passwords to the
files/documents created in Microsoft
Office applications (all versions up to
Office 2003): Word, Excel, Access
(including user-level passwords and owner
info), Outlook, Project, Money,
PowerPoint, Visio, Publisher, OneNote,
Backup, Schedule+, Mail. Can also reset
MS Internet Explorer (3/4/5) Content
Advisor password, and open
password-protected VBA projects (created
in any application) via the "backdoor".
Most passwords are being recovered
instantly; the "password to open" in
Word/Excel 97/2000/XP/2003 can be
recovered using "brute-force" and
dictionary attacks, effectively optimized
for speed.

There are three editions of AOPR: Home,
Standard and Professional. Home edition
can recover passwords to Microsoft Word
and Excel documents only (all but VBA
Project passwords). Standard edition is
also able to recover/remove Word and
Excel VBA Project passwords, can unlock
protected Excel add-ins (XLA), recover
"password to open" to Access MDB files,
and supports all Outlook passwords.
Professional edition is the most complete
solution that recover all passwords for
all Microsoft Office components and a few
other Microsoft products, including
Access user-level passwords and ownership
information, Microsoft Project,
PowerPoint, OneNote, Money and much more.

http://www.elcomsoft.com/