Passwords that do not encrypt, but restrict modification.If the password can be determined through social engineering, the underlying cipher is not important.
Since Office 2007 they are hard to break, if a sufficient complex password was chosen.
This is possible in all Microsoft Office applications. A password to encrypt a document restricts opening and viewing it.There are two groups of passwords that can be set to a document: Microsoft Office password protection is a security feature to protect Microsoft Office documents (Word, Excel, PowerPoint) with a user-provided password.
