Guaranteed Excel Decrypter (unlimited, Windows+Linux version)
This is a utility to decrypt Excel 97/2000 files with passwords for opening. Please do not use it for decryption Excel version before 97 (8.0) or French Excel (any version). Any file, encrypted with ANY password (no matter how long the password is, what charset and national symbols are used) can be decrypted with a guarantee. It will take about one week on average (15 days maximum) to use one Pentium 4/1600. A simple distributed computing mechanism using several computers is included to speed up. This is a command-line utility.