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Try this, if you cannot open the file in Outlook<br />
<br />
<a href="https://www.stellarinfo.com/email-tools/pst-viewer.php" rel="ugc">https://www.stellarinfo.com/email-tools/pst-viewer.php</a>
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finance_teacher

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Thanks John for suggesting the software.<br />
<br />
finance_teacher, Stellar PST Viewer is completely free tool which can open your PST file, preview the complete mailbox contents, allows to save the PST in EML, MSG, RTF, HTML, or PDF. This software can open both corrupt and working PST.
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Hey,<br />
<br />
PST viewer is free to view your PST file without Outlook so try anyone. <br />
<br />
Here is the best comparison about Top 3 PST Viewer:<br />
<br />
<a href="https://www.experts-exchange.com/articles/30707/Top-3-Best-PST-Viewer-Tools-to-Open-View-Outlook-PST-Files.html" rel="ugc">https://www.experts-exchange.com/articles/30707/Top-3-Best-PST-Viewer-Tools-to-Open-View-Outlook-PST-Files.html</a>
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can i know what's the ultimate purpose for you to view PST without using Outlook?
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<div class="content wysiwyg-content">
What software do you recommend users open .PST files if Outlook is NOT installed ?<br />
<br />
Below are some I was looking at<br />
<br />
<a href="http://www.ostpstviewer.com/comparison.aspx" rel="ugc">http://www.ostpstviewer.com/comparison.aspx</a><br />
<a href="http://www.forensicsware.com/solutions/outlook-pst-reader/" rel="ugc">http://www.forensicsware.com/solutions/outlook-pst-reader/</a><br />
<a href="https://www.viewertool.com/pstviewer.html" rel="ugc">https://www.viewertool.com/pstviewer.html</a><br />
<a href="https://www.bitrecover.com/free/pst-viewer/" rel="ugc">https://www.bitrecover.com/free/pst-viewer/</a><br />
<a href="https://www.freeviewer.org/pst/" rel="ugc">https://www.freeviewer.org/pst/</a><br />
<a href="https://tools.google.com/dlpage/outlookmigration" rel="ugc">https://tools.google.com/dlpage/outlookmigration</a>
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What software do you recommend users open .PST files if Outlook is NOT installed ?

Below are some I was looking at

http://www.ostpstviewer.com/comparison.aspx
http://www.forensicsware.com/solutions/outlook-pst-reader/
https://www.viewertool.com/pstviewer.html
https://www.bitrecover.com/free/pst-viewer/
https://www.freeviewer.org/pst/
https://tools.google.com/dlpage/outlookmigration

.PST file -- open without Outlook installed ?

Software is any set of instructions that directs a computer to perform specific tasks or operations. Computer software consists of programs, libraries and related non-executable data (such as documentation). Computer software is non-tangible, contrasted with computer hardware, which is the physical component of computers. Software written in a machine language is known as "machine code". However, in practice, software is usually written in high-level programming languages than machine language. High-level languages are translated into machine language using a compiler or interpreter or a combination of the two.

Software

An email client, email reader or more formally mail user agent (MUA) is a computer program in the category of groupware environments used to access and manage a user's email. A web application that provides message management, composition, and reception functions may internally act as an email client; as a whole, it is commonly referred to as webmail. Likewise, email client may be referred to a piece of computer hardware or software whose primary or most visible role is to work as an email client. Email clients can also have other systems, like calendars, notes and contact managers.

Email Clients

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.