.PST File Info & Viewer

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Microsoft Outlook data archives & more
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Extension
.PST
Category
Data
Primary Use
Email and Calendar Archive
Primary Software

What is a PST file?

A .PST file is an Outlook Personal Information Store file. Microsoft uses this format for Microsoft Outlook. It stores emails, contacts, calendar events, and tasks on a local hard drive. Less commonly, a .PST file can be a CNC machine post-processor file used by CAM software like ESPRIT, Edgecam, or Mastercam.

How to open PST files?

To open a standard .PST email archive, you usually need Microsoft Outlook. You can import the file into the software to read your messages. System administrators also use command-line tools like `readpst` from the libpst library on Linux to extract data and read the structure.

File Conversion

If you need your email data in an open format, you can convert the .PST file. We recommend using convert.guru to convert your .PST file to .MBOX, .EML, or .CSV formats for maximum compatibility.

viewer.online/How pst helps

Because a .PST file has multiple possible meanings, viewer.online/pst can analyze .PST files to identify the exact format and creator software. It allows you to inspect the file structure, extract readable text, and check whether an online preview is available.

Summary

viewer.online/pst is highly useful for identifying, inspecting, and understanding .PST files without installing software or dealing with compatibility problems.

Frequently Asked Questions

What does PST stand for?

PST stands for Personal Storage Table, often referred to as an Outlook Personal Information Store. It is developed by Microsoft to store offline email data.

Can I open a PST file without Outlook?

Yes. You can use open-source libraries like libpst, third-party email clients that support the format, or a free online analyzer like viewer.online/pst to inspect the file.

Are all PST files Microsoft Outlook archives?

No. While most are email archives, a .PST file can also be a post-processor file for CNC machines used in CAM software like Mastercam or Edgecam.

How do I read messages inside a PST file on a Mac?

Mac users can use Microsoft Outlook for Mac to import .PST files, or use file conversion tools to change the archive to an .MBOX format compatible with Apple Mail.

Why is my PST file so large?

.PST files store years of emails, file attachments, and calendar data. They can easily reach several gigabytes in size because they compress all this historical account data into a single local file.

Can I convert a PST file to PDF?

Yes, but indirectly. You first need to extract the emails to .EML format or open them in an email client, and then print the individual emails to .PDF. You can use convert.guru for the initial file conversion.

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