DRS OST Viewer

OST files are synchronized copies of your mailbox, and they are supported by a handful of clients like Outlook, IMAP, Microsft 365, Exchange, etc. OST files are created, so a mailbox user can access their data in offline mode. DRS OST Viewer is an application built to allow users to view the contents of their OST files and also convert their mailbox items to various formats like PDF, PST, MBOX, EML, CSV, DOC, and more.

DRS OST Viewer doesn't appear to have an original UI. In fact, this recipe seems to be somewhat recursive with software like this. Still, the program is not difficult to use, which is a plus for a user with moderate technical skills.

The prime feature of DRS OST Viewer is its ability to allow one to view mailbox items without the need for the source application, like Outlook in this case. The program simply acts as the conduit for your messages, contacts attachments, and so on.

Besides viewing OST contents, the program can also be used for file conversion. In case your files have duplicates among them, the app should detect and prompt you to remove those before conversion.

DRS OST Viewer is yet another tool that focuses on OST preview and conversion. It does not need the source app to work, and it supports a decent amount of formats, which makes it an appropriate solution for anyone interested.