.PST File Extension

Personal Storage Table

The PST file format provides specifications for the Outlook Personal Folders file. PST files store Folder, Message, and Attachment objects in a hierarchy. Objects contain properties with item informat...

General Information

Title PST File Extension
Extension .pst
Full Form Personal Storage Table
File Type Data File
Developer Microsoft
MIME Type application/octet-stream

File Function

Primary Function Store emails
Additional Functions Calendar events, Contacts, Tasks
Features Encryption, Compression

File Characteristics

Quality High reliability
Supports Encryption Yes
Supports Compression Yes
Editable With software

Use Cases

Email Archiving Yes
Data Migration Yes
Backup Yes

Security and Practices

Security Risks Corruption, Unauthorized access
Best Practices Regular backups, Use passwords

Historical/Version Information

Initial Release Outlook 97
Latest Version Unicode format

Associated Types

Similar Extensions .ost, .msg, .eml

Software Compatibility

Software Usage Policy OS Compatibility
Microsoft Outlook Commercial Windows, Mac
Mozilla Thunderbird Free Windows, Mac, Linux
Stellar Converter for PST Commercial Windows