Open PST OST files without Outlook

When you use Microsoft Outlook, your personal data will be saved in a .pst and a ost file on your computer. They are the Outlook Data File. These files contain your email messages, calendar, tasks and so on. If you have upgraded to a new computer and don’t have Microsoft Outlook on your computer or do not want to use Outlook any more, how can you open the Outlook backup file, Outlook Data Files or convert them to other formats so you can import them to a different email program on your new PC?

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Open PST files without Outlook

This is the most common Outlook data file. When you create a backup of your messages and other data in Outlook, they will be saved to the PST file. When you migrate data to a new PC, you can directly import PST files to Outlook program on your new computer. If you do not have Outlook on the new computer or want to use another email client on the new device, you can use Outlook PST converter to open PST file without Outlook. With this PST converter, you can also view PST file, extract data from PST file, convert PST file to other file formats so you can move your data from Outlook to other email programs.

Outlook PST to MBOX Converter

Run the Outlook PST reader and converter, you will be prompted to select Outlook profile and MBOX client. As we just need to open and view PST file, thus we need only select PST file here. Click to select Outlook PST file in the list, then click OK button, the selected Outlook data file will be opened in the Outlook PST viewer and converter software. You can view email messages in the Inbox folder, Outbox, and access sent items, junk emails, drafts, calendars, contacts and other Outlook folders.

How to open and view Outlook OST files?

OST is another type of Outlook data files, also known as offline Outlook data file. When you use a Microsoft Exchange Server account, you can configure Outlook to save a synchronized copy of your data, email messages, calendar, and other items, on your local computer in a OST file. It allows Outlook users to work offline or use the Cached Exchange Mode which is activated by default. Since the OST file is synchronized with the Exchange server or your data on remote server, you do not need to create backups of this file and this OST file is usually very large as it contains a lot of your personal data, such as your Outlook Inbox, calendar, contacts, tasks, notes and many more. Unfortunately you can’t import OST files into Outlook directly. Currently Outlook accepts only PST files. If you like to import OST files to Outlook or open OST file without Outlook, you can use this OST to PST converter. Run the OST to PST converter, you will be prompted to select or find OST files from your computer. See Outlook data file location on Windows 10 PC, if you can’t find the Outlook mailbox or use the built in Find Outlook Mailbox feature to search and select the Outlook data file (OST). After that hit the Scan now button, then the OST viewer and converter software will access the OST file, open and list all data contained in it. You can then find, view, save or convert any email messages in the OST file using this OST viewer and converter.

Outlook OST to PST Converter