The libpst project includes a library and a set of utilities to decode and convert MS Outlook PST files. readpst - convert PST files to mbox and other formats lspst - list PST (MS Outlook Personal Folders) file data pst2ldif - extract contacts from a PST file in .ldif format pst2dii - extract email messages from a PST file in DII load format Also included is a man(5) page which describes the format of PST files.