100 to 200 of 301 Extensions Beginning With 'O'

OFR File Extension - Systems Management Server (SMS) Offer Description File (Microsoft Corporation), etc
OFT File Extension - Outlook Item Template (Microsoft Corporation), etc
OFW File Extension - Toplevel Forms Form (Toplevel Computing Ltd), etc
OFX File Extension - Open Financial Exchange File , etc
OGF File Extension - OnkoS Graphic File (OnkoS), etc
OGF2 File Extension - MapViewGPS Map Coordinates File , etc
OGF3 File Extension - MapViewGPS Map Coordinates File , etc
OGG File Extension - Origin Graphic File (OriginLab Corporation), etc
OGI File Extension - OpenPBX Gateway Interface File (OpenPBX.org), etc
OGL File Extension - Overlay Source Code , etc
OGM File Extension - Ogg Vorbis Compressed Video File , etc
OGNC File Extension - Web Page Source Code , etc
OGO File Extension - Origin Pro Graphic Object File (OriginLab Corporation), etc
OGS File Extension - Origin Script File (OriginLab Corporation), etc
OGV File Extension - Theora Ogg Transport Stream Video File (Xiph.Org Foundation), etc
OGW File Extension - Origin Worksheet File (OriginLab Corporation), etc
OGX File Extension - C++ Component Gallery Exported Classes and Resources (Borland Software Corporation), etc
OH File Extension - Overhoor ( DrillAssistant) List (Efkasoft), etc
OH4 File Extension - Overhoor ( DrillAssistant) List (Efkasoft), etc
OHC File Extension - OpenHelp Table of Contents File (Borland Software Corporation), etc
OHI File Extension - OpenHelp Index (Borland Software Corporation), etc
OHL File Extension - OpenHelp Link (Borland Software Corporation), etc
OHP File Extension - DOS 7 File , etc
OHS File Extension - Bink Outbound History , etc
OHSD File Extension - HealthFrame OpenHealth Service Plug-in (Records For Living, Inc.), etc
OHW File Extension - Overhoor ( DrillAssistant) List (Efkasoft), etc
OID File Extension - Prosa/OM Object Interaction Diagram , etc
OIF File Extension - QuickBase Web-sharable Database Interchange File , etc
OIK File Extension - Lenné3D Plant Distribution File (Lenné3D GmbH i.G.), etc
OIL File Extension - Open Image Library Format , etc
OIT File Extension - SleepScan and Ceegraph Offset Index File (Bio-logic Systems Corp.), etc
OIX File Extension - Lenné3D Plant Distribution File (Lenné3D GmbH i.G.), etc
OJP File Extension - 3WayPack (The Three-Mode Company), etc
OK File Extension - Dot OK File Digest (John Oberschelp), etc
OKM File Extension - OkMap Map Defining File (Gian Paolo Saliola), etc
OKS File Extension - OKScript File (Mike Mardesich), etc
OKT File Extension - Oktalyzer Tracker Module , etc
OKX File Extension - OKScript File (Mike Mardesich), etc
OLB File Extension - OrCAD PSpice Capture Symbols Model (Cadence Design Systems, Inc.), etc
OLD File Extension - Old Version , etc
OLDEST File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
OLE File Extension - Object Linking and Embedding (OLE) Object , etc
OLF File Extension - OyezForms Legal Documents (UK) (Oyez), etc
OLG File Extension - OATS Log File (AmsterCHEM), etc
OLI File Extension - Olivetti Text File , etc
OLK File Extension - Outlook Address Book (Microsoft Corporation), etc
OLL File Extension - TrialDirector Object Load List , etc
OLLIEF File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
OLN File Extension - Visual C++ Outline Examples (Microsoft Corporation), etc
OLR File Extension - Openlab Raw Format (Improvision), etc
OLRW File Extension - Openlab Raw Format (Improvision), etc
OLSR File Extension - olsrd Configuration (olsr.org), etc
OLT File Extension - Visual C++ Outline Examples (Microsoft Corporation), etc
OLV File Extension - OyezForms Legal Documents (UK) (Oyez), etc
OM File Extension - Omicron Compiler File , etc
OMA File Extension - Sony OpenMG Music Format File (Sony Corporation of America), etc
OMB File Extension - Omnibus Offline Web Storage (Alfega Technologies, Inc.), etc
OMD File Extension - Prosa/OM Class Model , etc
OMF File Extension - Operation, Management & Finance Database (ENIAC Computing), etc
OMG File Extension - OpenMG Jukebox (Sony), etc
OMN File Extension - Omnipotent, Inc. Collection File , etc
OMO File Extension - Oracle Media Objects File , etc
OMP File Extension - OpenMind Project (MatchWare A/S), etc
OMS File Extension - Macintosh MP3 Music Format , etc
OMX File Extension - OMAX Make Tool Path File (OMAX Corporation), etc
ON File Extension - Audio Utility Tuningwrench Compressed File , etc
OND File Extension - Notes Database (IBM), etc
ONE File Extension - EdgeCAM Licensing Data Ffile (Pathtrace Engineering Systems), etc
ONF File Extension - Open Navigation Format File , etc
ONLINE File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
ONX File Extension - Onyx Graphics Postershop File , etc
OO File Extension - Free Pascal Object File for OS/2 Version (FPC Development Team), etc
OOM File Extension - Shroom Swap File , etc
OOP File Extension - OOP Packer Archive (TonyTown Software Ltd.), etc
OP File Extension - Origin Preprocessed Origin C File (OriginLab Corporation), etc
OP2 File Extension - Musplay 1.72 File , etc
OP73 File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
OPA File Extension - Psion OPL Object File (Psion PLC), etc
OPC File Extension - Omron OPC Client File , etc
OPD File Extension - OmniPage Document (Nuance Communications, Inc.), etc
OPEN File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
OPENYO File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
OPF File Extension - Flip Album File , etc
OPI File Extension - OmniPass Exported User (Softex, Inc.), etc
OPJ File Extension - OrCAD Project File (Cadence Design Systems, Inc.), etc
OPK File Extension - Origin Origin Pack File (OriginLab Corporation), etc
OPL File Extension - Psion Organiser Programming Language Source File (Psion PLC), etc
OPM File Extension - Quadrox Digital CCTV System Components , etc
OPML File Extension - Outline Processor Markup Language , etc
OPN File Extension - Strip Poker Deluxe Opponent File (Eagle Rock Enterprises, Inc.), etc
OPO File Extension - Psion OPL Output Executable File (Psion PLC), etc
OPOS File Extension - VirtuaSys Opos Script (VirtuaSys :: Sistemas Virtuais), etc
OPP File Extension - IPhoto File (Keronsoft), etc
OPS File Extension - Dynamite VSP Object Placement Style (3am Solutions (UK) Limited), etc
OPT File Extension - Business Integrator Option File (Pervasive Software Inc.), etc
OPTION File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
OPTNS File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
OPUS File Extension - Unknown Apple II File (found on Golden Orchard Apple II CD Rom) , etc
OPW File Extension - OrgPlus Organization Chart (HumanConcepts, LLC), etc
OPX File Extension - OrgChart Organization Diagram (Microsoft Corporation), etc