Also known as Personal Storage Table, PST is an email format used to store personal information, calendar events, messages or other types of data generated by Microsoft Outlook and Exchange.
The most common way to access PST files is to open them using Outlook, but one could also resort to various third-party apps which support the format.
PST viewers will enable users to explore the contents of their PST files, including email senders, contacts, addresses or other items.
One needs to keep in mind that, except Outlook, PST viewers do not support any editing functions, at most allowing users to export PST to other formats.