Kon-Boot - Kon-Boot is a password hacking, password recovery tool for Windows and Mac.
PassFab for Excel - Recover Excel password and worksheet protection.
hashcat - The World's Fastest CPU/GPU powered password cracker.
Office Recovery - Data recovery software for corrupted email, databases, office productivity applications and media. Dozens of supported formats include Microsoft Office, SQL Server and Exchange Server files. Free demo downloads.
Tenorshare Windows Password Recovery - Forgot your Windows login password?
SysTools Powerpoint Recovery - SysTools PPTX file recovery tool allow users to recover multiple PPTX files in one go. With the help of 3 recovery modes, it’s very easy to restore as well as repair PowerPoint files. Also, compatibility and robustness make this software reliable.