This page contains information on the PST file extension (Personal Folder File), a popular video file format

PST PST (Document)

File extension .pst
Category Document File
Description A Personal Storage Table (.pst) is a file that is used to store copies of messages, calendar events, and other items within Microsoft software such as Microsoft Exchange Client, Windows Messaging, and Microsoft Outlook. PST files are used for archiving email data offline that can be later loaded and viewed in various applications.
Technical Details PST file formats have two types which are based on the encoding. ANSI encoded PST files are generally older file formats, supported by Microsoft Outlook 2002 and earlier versions - these files have a maximum size limit of 2GB and do not support Unicode. The more modern file format is based on Unicode encoding and removes the file size limit and can reach a maximum size of 50GB.
Associated programs
  • Microsoft Outlook 365
  • Microsoft Exchange Server
  • Encryptomatic PSTViewer Pro
Developed by Microsoft
MIME type
  • application/
Useful links