Overview of MS Office 95 password protection: MS Office 95 used its own weak encryption algorithm, which XORed different data with the same key, that it is cryptographically wrong. As far as Office files usually contain known text, so it is possible to do password recovery almost instantly.

File extensions: doc, xls
MS Office 95 crypto algorithms: proprietary
MS Office 95 encryption weakness: repeated usage of cipher keystream (details...)
Possible attacks against MS Office 95: password decryption using known-plaintext
Attacks complexity: 2⁴

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Excel Password Remover 2007
(60986 downloads) by Einar Ståle Huse

: instantly

: not tested

: instantly

: N/A

:

Free
Price: $0.00

Description: FREE Excel add-in that removes/cracks sheet and workbook password protection in Excel. Password for opening is not supported!

Advanced Office Password Recovery (AOPR) 4.11
(17417 downloads) by ElcomSoft Co.Ltd.

: not tested

: not tested

: not tested

: N/A

: Pentium II/III; Pentium 4

Shareware
Price: $49.00

Description: A GUI utility, supports all MS Office versions (from Office 95 to 2007) and all possible MS Office components and passwords (up to 30): Word, Excel, Access (including user-level passwords and owner information), Project, Money, PowerPoint, Publisher, Visio, OneNote, 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.