PST File Extension

Primary Association Outlook.
Developed By Microsoft Corporation
Category Document files
Application Supported Microsoft Outlook
MIME Type application/
Identifying Signature Hex: 21 42 44 4e

What is PST?

PST stands for Personal Storage Table developed by Microsoft. It includes Email folders, Address book, Attachments, Calendars, and many more thing which Outlook collects. It is an open file format for which Microsoft provides free specifications. Personal Storage Table files are the best suited to store the content as they are structured to store personal storage along with emails.

Types of PST File

  • ANSI PST File: It supports old versions of Microsoft Outlook. It is capable of storing only 2 GB data.
  • Unicode PST File: It supports MS Outlook 2003 and later. Unicode PST file support multiple characters and capable of storing 20 GB data.

Location of PST File

  • Microsoft Outlook 2016 Outlook 2016: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\
  • Microsoft Outlook 2013 Outlook 2013: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\
  • Microsoft Outlook 2010 Outlook 2016: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\
  • Microsoft Outlook 2007 Outlook 2007: HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\
  • Microsoft Outlook 2003 Outlook 2003: HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\
How to Open PST File
  • Open your Outlook account.
  • Go to Import/Export option.
  • Now, open PST file.

PST File Converter
Convert PST to 10+ File Formats
PDF, MBOX, and more... Read More »