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1. #2016 EXCEL FILE LOCKED FOR EDITING HOW TO UNLOCK SOFTWARE#
2. #2016 EXCEL FILE LOCKED FOR EDITING HOW TO UNLOCK PASSWORD#

This protection algorithm is also currently considered to be weak and presents no difficulties to hacking software. In Excel and Word the key length was increased to 40 bits.

#2016 EXCEL FILE LOCKED FOR EDITING HOW TO UNLOCK SOFTWARE#

Hacking software is now readily available to find a 16-bit key and decrypt the password-protected document instantly.

#2016 EXCEL FILE LOCKED FOR EDITING HOW TO UNLOCK PASSWORD#

In Excel and Word 95 and prior editions a weak protection algorithm is used that converts a password to a 16-bit key. History of Microsoft Encryption password To provide improved security, Microsoft has been consistently enhancing the Office encryption algorithm strength.

Due to the encryption of a document protected by a password to open it, a hacker needs to decrypt the document to get access to its contents. If a user fails to enter a correct password to the field which appears after an attempt to open a password-protected document, viewing and editing the document will not be possible. It is possible to set this type of password in all Microsoft Office applications. The password that encrypts a document also restricts the user from opening the document. In Microsoft Excel passwords restrict modification of the workbook, a worksheet within it, or individual elements in the worksheet.In Microsoft Word and in Microsoft PowerPoint passwords restrict modification of the entire document or presentation.Passwords that do not encrypt a password-protected document have different security level features for each of Microsoft Office applications as mentioned below. Microsoft Office applications offer the use of two main groups of passwords that can be set to a document depending on whether they encrypt a password-protected document or not. 2 History of Microsoft Encryption password.