Personal Storage Table is a file extension for local 'personal stores' written by the program Microsoft Outlook. PST files contain email messages and calendar entries using a proprietary but open format, and they may be found on local or networked drives of email end users. Several tools can read and migrate PST files to other formats. http://en.wikipedia.org/wiki/Personal_Storage_Table;
Definition by https://www.dpconline.org/handbook/glossary
