MailsDaddy Free PST Viewer is a free solution to read the PST data file. The tool previews all types of Outlook PSTs and does not requires the availability of MS Outlook email client. This freeware PST File Opener designed for Windows OS through which user can view the entire PST items in just few clicks. It provides advanced search feature to find PST emails using its elements like To, Subject, From, etc. The application is compatible with PST data file of entire Outlook editions including 2016, 2013, 2010, etc. The software helps users read all small, mid and large PSTs without any alteration of the PST file.