Personal Storage Table

In computing, a Personal Storage Table (PST) is an open, proprietary file format used to store messages, calendar events, and other items within Microsoft software such as Microsoft Exchange Client, Windows Messaging, and Microsoft Outlook. The open format is controlled by Microsoft, who provides free specifications and free irrevocable technology licensing.

The file format may also be known as a Personal Folder File or a Personal Address Book (.pab). When functioning in its capacity as a cache for Outlook's Cached Exchange Mode feature, it may be called an Offline Storage Table (.ost) or an Offline Folder File.

Read more about Personal Storage Table:  Overview, Data Access, Support, Formats and Size, Related Formats

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