A free tool to search in, open and view OST PST data files without Microsoft Outlook. PST file viewer is the right tool for users who have lots of PST files and don\'t want to connect each of them to Outlook OST PST Viewer has a simple design so, you don\'t need to spend extra time for becoming familiar with the OST PST Viewer interface. Everything is in its proper place. Using OST PST Viewer view PST files is as simple as opening any other document. Just click the “open” button in the file menu and choose a PST file. With OST PST Viewer you also can read PST and OST without connecting them to Outlook. Just simply click the “open” button in the file menu and choose which PST or OST file to view; all your data becoming available for reading. No more steps are needed to read PST files. Free OST PST Viewer support of PST, OST, EML, MHT file formats. The Pro edition unlocks all OST PST Viewer features.OST PST Viewer Pro supports PST, OST, EML, MHT file formats. Using OST PST Viewer after you open PST file, you can search in multiple files, copy any information you want. If you need a paper copy of email - print it out. Easily export to PDF, HTML or any picture file format. If PST files are password protected or encrypted, you can open them using OST PST Viewer. By using OST PST Viewer, you can save significant amount of time when opening your Outlook files. You can view and copy all data you need from Emails, Calendars, Contacts, Tasks and Notes.