PRC Format  
   An attempt to decipher and describe the PalmPilot .prc file format.
   http://web.mit.edu/tytso/www/pilot/prc-format.html

DOC Format Man Page  
   Describes the structure of the PalmPilot .doc standard text file format.
   http://www.nicholson.com/rhn/pilot/doc.txt

PDB Format Man Page  
   Describes the structure of the PalmPilot .pdb (Pilot Database) file format.
   http://www.nicholson.com/rhn/pilot/pdb.txt

Palm OS Developer Documentation  
   Official file format specs for Palm Database (PDB), Palm Resource (PRC), and Palm Web Clipping Application (PQA) files, as well as full SDK, Conduit, and web clipping documentation.
   http://www.palmos.com/dev/tech/docs/

HackMaster API  
   How to Write a Hack and describes the Hack file format.
   http://www.daggerware.com/hackapi.htm

DAT-Formats  
   Describes a number of the PalmPilot .dat files, including Memopad, Todolist, Addressbook, Datebook, and USERS.DAT.
   http://ourworld.compuserve.com/homepages/nseessle/frames/pilot/dat_e.htm

Palm Desktop 3.0 DAT File Formats  
   Data file formats for the Palm Desktop 3.0 MFC streams files. Included are address.dat, todo.dat, datebook.dat and memopad.dat.
   http://www.geocities.com/Heartland/Acres/3216/palmrecs.htm