MailsDaddy Free PST Viewer - Version 3.1 PST file Viewer is an affordable solution that is used to view and read Outlook PST files. The tool supports password-protected, encrypted as well as corrupted Outlook PST files. The advance search option of the Free PST Viewer tool is used to search PST file emails by using the specific email criteria. The PST Viewer Tool does not require the installation of MS outlook to access add read the Outlook PST file format. #. Open PST file without Outlook Application #. Open corrupted and encrypted PST files. #. No PST File Limitation #. Advanced search to search PST mails by specifying criteria. #. Compatible with all latest editions of Windows Operating System