If you are looking for the quickest and simplest way and tool to find and extract information stored in connected or orphaned Outlook data files – OST PST Viewer is the best solution for you.
Our tool is a Free* Windows software that does not require Microsoft Outlook to be installed.
Can’t open OST files or PST files?
With OST PST Viewer you can open, view, search, print out* and export* .pst or .ost file content to .pdf*, MSG, VCF (vCard), ICL (iCal) or PST file. No more errors and inaccessible files... more
OST files are used in Microsoft Exchange Server to store data on a local computer, hence you can’t connect it directly to Outlook. With OST PST viewer, you can open OST files in a few clicks.
The software is designed with familiar Microsoft Outlook look-alike user interface. So, you can manage and interact with PST files content the way you usually do, e.g. view or reply to a message, view monthly calendar events, search and copy a selected contact phone number.
With OST PST Viewer PRO Edition* you can manage Outlook data file content beyond just viewing it, e.g. export PST files convert OST to PST file to various file formats, print out selected items, export one or all attachments from the selected folder, change or update the follow- up flags and read/unread status, advanced search and more.
All above make OST PST Viewer Pro an indispensable tool for professionals, who manage Microsoft Outlook and Exchange mailbox backups , PST archives, for export and mailbox data migration and OST file conversion , as well as for regular users of Microsoft Outlook desktop software who need access to Outlook data and backup without opening it, or if Outlook fails to start or lost connection to an Exchange server.