File Extension Library


.PST File Extension

  • Developer by: Microsoft
  • Category: Data Files
  • Format: Binary

What are .PST files and how to open them?

Can't open .PST file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .PST file.

What is a .PST file extension?

.PST file extension is created by Microsoft. .PST has been classified as Data Files. The format of .PST file is Binary.

.PST is Outlook Personal Information Store File

A PST file is a data storage file that contains personal information used by Microsoft Outlook and Exchange. It may also include e-mail folders, contacts, addresses, and other data.

PST files have a 2 GB limit and will cause Outlook to slow down when the file is close to the limit. Microsoft provides a program called the Exchange 2000 Tool: PST2GB that will reduce the file size of a PST file. However, the utility may truncate the file meaning some data will be lost, so you should make sure to back up the PST file first.

Unlike the full version of Outlook, Outlook Express does not use PST files. However, Outlook Express can import PST data using the program's Import feature. Mac users can use the PST Import Tool for Entourage to import PST data into Entourage or the PST to MBOX Converter to convert PST files to .MBOX files.

List of all softwares that can open the Outlook Personal Information Store File
Windows
Microsoft Outlook 2016
Microsoft Exchange Server
Microsoft Outlook Express
Remo Repair Outlook (PST)
BitDaddys Email Open View Pro
Encryptomatic PSTViewer Pro
OEMailRecovery.com Outlook Recovery Toolbox
Mac
Microsoft PST Import Tool for Entourage
Stellar PST to MBOX Converter for Mac

How to fix problems with .PST files

  1. You need to update the application that you normally use to open .PST files. Only the latest version of the software supports the current .PST file format
  2. You need to check the .PST file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)