MSOfPass97 is a program to recover passwords for MS Word'97 & Excel'97 documents. 

Features

two products in one - Word & Excel password recovery 
recovers Word'97 open, form and document protection passwords 
recovers Excel'97 open and worksheet protection passwords 
Word'97 form and document protection passwords are recovered instantly 
Excel'97 worksheet protection passwords are recovered instantly 
 recovers passwords for files created with French version of Office'97 without brute-force method. Passwords of any length can be recovered. 
full install/uninstall support 
 
     www.lostpassword.com
[c] 1999 Passware
 
  Limitations
Brute-force approach is used to recover the open password. The program checks all the passwords of specified length and for specified kinds of characters. This procedure is rather slow, so do not expect to recover passwords longer than 7 characters. 
To recover passwords for Word & Excel prior to '97 use MSOfPass instead 
Screenshot

Demo version is available for download free of charge. It will recover passwords that are not longer than 3 characters. All other features are in place.