PRM-Adobe-Premiere-plug-in-file
PRM-MYOB-Premier-file
PRM-Parameter-file-Generic
PRMR-Mac-File-Type
PRND-PageMaker-7-0-file
PRN-Printer-driver-Signature
PRN-Print-Table-space-delimited-text
PRN-Text-file-Lotus-1-2-3-Symphony
PRN-Windows-Printer-file-DataCAD
PRNX-Developer-Express-XML-Output-Document-Developer-Express-Inc
PRO2-Euphoria-time-profile-listing-file
PRO-Alphacet-Program-XML-files
PRO-Configuration-file-Pro-Engineer
PRODUCT-Norton-Ghost-file
PROF-ColorSync-Profile
PROFILE-FastTrack-Client-Profile
PROFILES-Amaya-config-file
PROFILES-Amaya-Configuration
PROFILE-Unknown-Apple-II-File
PROFIMAIL-ProfiMail-Settings-File
PROF-MW-Profiler
PROG-CD-Remote-Program-File
PRO-Graphics-profile-file-DOS
PROG-Unknown-Apple-II-File
PROJECT-Apple-Project-Builder-for-WebObjects-project
PROJECT-Zend-Studio-generally-project-settings-file
PROJ-Insight-II-NMR-Project-Accelrys-Software-Inc
PROJ-Mac-File-Type
PROJ-NeXT-Interface-Builder-Project-File
PROJ-NeXT-Project-File-Interface-Builder
PROJ-Poseidon-for-UML-Project-information-Header
PROJ-THINK-Project
PROMIZER-Promizer-v0-1-v1-0c-v1-8a-v2-0-v4-0-formats
PROPACKER-ProPacker-v1-0-v2-1-v3-0-Formats-Asle-ReDoX
PROP-Application-Visualization-System-AVS-High-end-Visualization-Environment
PROPDESC-Microsoft-Property-Description-File
PROPDESC-Property-Description
PROPERTIES-HSQLDB-Configuration-File
PROPERTIES-HSQLDB-configuration-Header
PROPERTIES-Java-properties-file
PROPERTIES-Java-Properties-File-Sun
PROPERTIES-Mozilla-Firefox-settings-file
PROPERTIES-Netscape-Communicator-Java-Classes-File
PROPERTIES-Properties-file
PRO-Project-file-Terramodel
PROPS-Microsoft-Visual-Studio-property-sheet-file
PROP-Spore-Property-File-Electronic-Arts-Inc
PRORUNNER-ProRunner-v1-v2-formats-music-sound-Asle-ReDoX
PRO-Source-code-file-Prolog
PROTO-Message-specification-Google-Protocol-Buffers
TechTarget file types