|
Extension |
Information |
|
O |
Object
File |
|
O |
UNIX/GCC
Object File |
|
O |
Origin
C Compiled Program File (OriginLab) |
|
O |
Free
Pascal Object FIle for Linux
or DOS Version (FPC
Development Team) |
|
O$$ |
Output
File |
|
O$$ |
Sprint
Outfile |
|
O01 |
Typhoon
Voice File |
|
O1 |
Free
Pascal Object File for
GO321v1 Platform (FPC
Development Team) |
|
O2C |
Objects
to See 3D File Format (mb
Software AG) |
|
O8O |
Mediator5
Repositorytabs Vorlagen.006
File |
|
OAB |
Outlook
Address Book (Microsoft) |
|
OAF |
ETH
Oberon Applet File |
|
OAF |
Outrage
Animation Rows |
|
OAF |
Flight
Simulator Texture File
(Microsoft) |
|
OAZ |
NetFax
Manager OAZ Fax File |
|
OB |
IMB
LinkWay Object File |
|
OB |
ABF
Outlook Backup Backup File (ABF
software, Inc.) |
|
OB$ |
Compressed
OBJ (Microsoft) |
|
OB1 |
OzWin
CompuServe E-mail/Forum
Access Saved Outbox File |
|
OBA |
Timespace
X100 Digital Video Recorder
Video File (Electronics
Services Agency) |
|
OBD |
Office
Binder Document (Microsoft) |
|
OBD |
Oracle
Forms Online Help File
(Oracle) |
|
OBE |
Out
Of Box Experience |
|
OBE |
System
DLL Oobe File |
|
OBJ |
Metatools
Object Bryce Support File |
|
OBJ |
Relocatable
Object Code |
|
OBJ |
Wavefront
3D Object |
|
OBJ |
LightWave
3D Object (NewTek) |
|
OBK |
Ubi
Soft Chessmaster Opening
Book File |
|
OBK |
Oxygen
Phone Manager Phone Book
(Oxygen Software) |
|
OBN |
Oberon-2
Module Source File |
|
OBP |
Bryce
5 Object Preset (Corel
Corporation) |
|
OBPACK |
ObjectBar
Object Package (Stardock
Corporation, Inc.) |
|
OBR |
C++
Object Browser Data File
(Borland Software
Corporation) |
|
OBS |
ObjectScript
Script |
|
OBS |
OzWin
CompuServe E-mail/Forum
Access Saved Outbox File |
|
OBSKIN |
ObjectBar
Skin File (Stardock
Corporation, Inc.) |
|
OBT |
Office
Binder Template (Microsoft) |
|
OBTHEME |
ObjectBar
Theme File |
|
OBTHEME |
ObjectBar
Theme File (Stardock
Corporation, Inc.) |
|
OBV |
ObjectScript
Visual Interface |
|
OBX |
Rational
XDE (IBM) |
|
OBZ |
Office
Binder Wizard (Microsoft) |
|
OCA |
Control
Typelib Cache (Microsoft) |
|
OCA |
OLE
Custom Control Library
Information |
|
OCA |
Visual
Basic Control Typelib Cache |
|
OCB |
Origin
Precompiled Origin C File
(OriginLab Corporation) |
|
OCC |
DB/TextWorks
Database Terms and Words |
|
OCC |
OptControlCentre
Model File |
|
OCD |
OCAD
Digitized Map (Steinegger
Software) |
|
OCE |
Brio
Query (Hyperion Solutions
Corporation) |
|
OCF |
Object
Craft File |
|
OCF |
OM2Cipher
File |
|
OCM |
AOL
Advertising Control File
(America Online, Inc.) |
|
OCM |
Internet
Odyssey 2 Update |
|
OCM |
Netscape
Communicator Aim File |
|
OCP |
Advanced
Art Studio |
|
OCP |
Offline
Commander Project File |
|
OCR |
FAXGrapper
FAX Text File |
|
OCS |
eDoc
DigiSign Digitally Signed
Document (Fujitsu Denmark) |
|
OCT |
Octalizer
Musical File |
|
OCT |
Radiance
Octree Format |
|
OCX |
Object
Linking and Embedding (OLE)
Control Extension
(Microsoft) |
|
OC_ |
Doko
Compressed Install File |
|
OD1 |
Omnis5
Database File |
|
OD2 |
Omnis5
Database File |
|
OD3 |
Omnis5
Database File |
|
OD4 |
Omnis5
Database File |
|
OD5 |
Omnis5
Database File |
|
OD6 |
Omnis5
Database File |
|
OD7 |
Omnis5
Database File |
|
OD8 |
Omnis5
Database File |
|
OD9 |
Omnis5
Database File |
|
ODA |
CALS
Group IV Type 2 Raster Image |
|
ODA |
ODA
Document |
|
ODA |
Used
with OCX |
|
ODA |
AIBO
Audio Voice (Sony) |
|
ODB |
ArcView
Object Database ASCII File
(ESRI) |
|
ODB |
Psion
Organiser Datafile and LZ
Diary File (Psion PLC) |
|
ODB |
OpenOffice/StarOffice
OpenDocument (Ver 2)
Database (Sun Microsystems,
Inc.) |
|
ODB |
ABAQUS
File (ABAQUS, Inc.) |
|
ODC |
Office
Data Connection |
|
ODC |
OpenOffice/StarOffice
OpenDocument (Ver 2) Chart
(Sun Microsystems, Inc.) |
|
ODCCUBEFILE |
Office
Data Connection |
|
ODCDATABASEFILE |
Office
Data Connection |
|
ODCNEWFILE |
Office
Data Connection |
|
ODCTABLEFILE |
Office
Data Connection |
|
ODE |
Office
Object Data Embedding File
(Microsoft) |
|
ODF |
BattleZone
Cartographers Guild File |
|
ODF |
OnkoS
Data (OnkoS) |
|
ODF |
Open
Document Interchange (ODIF) |
|
ODF |
Star
Trek Armada Ship/Structure
Infomation |
|
ODF |
OpenOffice/StarOffice
OpenDocument (Ver 2) Formula
(Sun Microsystems, Inc.) |
|
ODG |
OpenOffice/StarOffice
OpenDocument (Ver 2)
Graphics Document (Sun
Microsystems, Inc.) |
|
ODH |
Odigo
History File (Comverse, Inc.
a part of Comverse
Technology) |
|
ODI |
OpenOffice/StarOffice
OpenDocument (Ver 2) Image
(Sun Microsystems, Inc.) |
|
ODIF |
Open
Document Interchange Format |
|
ODL |
Object
Definition Language |
|
ODL |
Visual
C++ Type Library Source
(Interface Definition
Language File) (Microsoft) |
|
ODM |
Opendisc
Software (Opendisc) |
|
ODM |
OpenOffice/StarOffice
OpenDocument (Ver 2) Global
Text Document (Sun
Microsystems, Inc.) |
|
ODP |
Oedipus |
|
ODP |
OpenOffice/StarOffice
OpenDocument (Ver 2)
Presentation (Sun
Microsystems, Inc.) |
|
ODS |
NCompass
Labs Internet Script |
|
ODS |
Outlook
Express Mailbox (Microsoft) |
|
ODS |
OpenOffice/StarOffice
OpenDocument (Ver 2)
Spreadsheet (Sun
Microsystems, Inc.) |
|
ODT |
OpenOffice/StarOffice
OpenDocument (Ver 2) Text
Document (Sun Microsystems,
Inc.) |
|
ODT |
MindRender
Virtual Reality Explorer Kit
(VREK) Object File Format
(Themekit Systems Ltd.) |
|
ODU |
Odigo
User File (Comverse, Inc. a
part of Comverse Technology) |
|
ODZ |
IBM
OpenDoc Editor Package File |
|
OEB |
Outlook
Express Backup Wizard |
|
OEM |
OEM
Data Used During Device
Install |
|
OEM |
SB_AWE
Keys SB_NT File |
|
OEM |
Text
Listing of Supported OEM
Devices for WinNT |
|
OF |
Audio
Utility Tuningwrench
Compressed File |
|
OF |
LessDATA
Video System OneFile File |
|
OF |
MicroImages
Outline Font (MicroImages,
Inc.) |
|
OFC |
Open
Financial Connectivity File |
|
OFD |
ObjectView
Form Defintion |
|
OFD |
OfficeForms
Form Data File (Toplevel
Computing) |
|
OFF |
3D
Mesh Object File Format |
|
OFF |
Vector
Graphic |
|
OFM |
Embroidery
Design File |
|
OFM |
Font
(Adobe) |
|
OFM |
OmniForm
Form File |
|
OFM |
PostScript
Font Description File |
|
OFM |
OfficeForms
Blank Form File (Toplevel
Computing) |
|
OFN |
Office
FileNew File (Microsoft) |
|
OFR |
OptimFROG
Encoded Audio (Florin Ghido) |
|
OFT |
Outlook
Item Template (Microsoft) |
|
OFX |
Olicom
Fax |
|
OFX |
Open
Financial Exchange File |
|
OGF |
OnkoS
Graphic File (OnkoS) |
|
OGF |
Outrage
Graphic Rows |
|
OGG |
Ogg
Vorbis Codec Compressed WAV
File |
|
OGG |
Origin
Graphic File (OriginLab) |
|
OGG |
Salt
Lake City Game File |
|
OGL |
Overlay
Source Code |
|
OGM |
Ogg
Vorbis Compressed Video File |
|
OGM |
Origin
Matrix File (OriginLab) |
|
OGO |
OriginPro
Graphic Object File
(OriginLab) |
|
OGS |
Origin
Script File (OriginLab) |
|
OGW |
Origin
Worksheet File (OriginLab) |
|
OGX |
C++
Component Gallery Exported
Classes and Resources
(Borland Software
Corporation) |
|
OH |
Overhoor
( DrillAssistant) List
(Efkasoft) |
|
OH4 |
Overhoor
( DrillAssistant) List
(Efkasoft) |
|
OHC |
OpenHelp
Table of Contents File
(Borland Software
Corporation) |
|
OHI |
OpenHelp
Index (Borland Software
Corporation) |
|
OHL |
OpenHelp
Link (Borland Software
Corporation) |
|
OHP |
DOS
7 File |
|
OHP |
OpenHelp
Project File (Borland
Software Corporation) |
|
OHS |
Bink
Outbound History |
|
OHW |
Overhoor
( DrillAssistant) List
(Efkasoft) |
|
OID |
Prosa/OM
Object Interaction Diagram |
|
OIF |
QuickBase
Web-sharable Database
Interchange File |
|
OIL |
Open
Image Library Format |
|
OKS |
OKScript
File (Mike Mardesich) |
|
OKT |
Oktalyzer
Tracker Module |
|
OKX |
OKScript
File (Mike Mardesich) |
|
OLB |
AUTOGEN |
|
OLB |
MS
Project Object Library |
|
OLB |
OrCAD
PSpice Capture Symbols
Models |
|
OLB |
VAX
Object Library |
|
OLB |
Medical
Terminology Challenge Data
File (Delmar Learning) |
|
OLD |
Old
Version |
|
OLE |
Object
Linking and Embedding (OLE)
Object |
|
OLF |
OyezForms
Legal Documents (UK) (Oyez) |
|
OLI |
Olivetti
Text File |
|
OLK |
MS
Mail Mailbag Lock |
|
OLK |
Outlook
Address Book (Microsoft) |
|
OLL |
TrialDirector
Object Load List |
|
OLN |
Visual
C++ Outline Examples
(Microsoft) |
|
OLT |
Visual
C++ Outline Examples
(Microsoft) |
|
OLV |
OnLive!
Traveler Sound File (The
Digital Space Commons) |
|
OLV |
OyezForms
Legal Documents (UK) (Oyez) |
|
OM |
Omicron
Compiler File |
|
OMA |
Sony
Music Format File (Sony) |
|
OMD |
Prosa/OM
Class Model |
|
OMF |
Open
Media Format File |
|
OMG |
OpenMG
Jukebox (Sony) |
|
OMN |
Omnipotent,
Inc. Collection File |
|
OMO |
Oracle
Media Objects File |
|
OMS |
Briggs
Softworks Order Maven |
|
OMS |
Macintosh
MP3 Music Format |
|
OMS |
Omega
Downloader Configuration
File |
|
OMX |
OMAX
Make Tool Path File (OMAX
Corporation) |
|
ON |
Audio
Utility Tuningwrench
Compressed File |
|
OND |
Notes
Database (IBM) |
|
ONE |
docPointer
Visual ReadMe File
(docPointer) |
|
ONE |
OneNote
Note File (Microsoft) |
|
ONE |
EdgeCAM
Licensing Data Ffile
(Pathtrace Engineering
Systems) |
|
ONF |
Open
Navigation Format File |
|
ONX |
Onyx
Graphics Postershop File |
|
OO |
Free
Pascal Object File for OS/2
Version (FPC Development
Team) |
|
OOM |
Shroom
Swap File |
|
OOP |
OOP
Packer Archive (TonyTown
Software Ltd.) |
|
OP |
Rescue
Disk File |
|
OP |
Origin
Preprocessed Origin C File
(OriginLab Corporation) |
|
OP2 |
Musplay
1.72 File |
|
OP2 |
Outpost
2 Saved Game |
|
OPA |
Psion
OPL Object File (Psion PLC) |
|
OPC |
Beta
44 Job File |
|
OPC |
Office
Upgrade Control File
(Microsoft) |
|
OPC |
Omron
OPC Client File |
|
OPD |
OmniPage
Document (ScanSoft, Inc.) |
|
OPD |
Durango
Interferometry Software
Document (Diffraction
International) |
|
OPF |
Flip
Album File |
|
OPF |
KEPServerEX
Project Configuration File
(Kepware Technologies Inc.) |
|
OPF |
Gemstar
eBook Publisher Package
(Gemstar eBook) |
|
OPF |
Obsidium
Project File (Obsidium
Software) |
|
OPJ |
OrCad
Project File |
|
OPJ |
Origin
Project File (OriginLab) |
|
OPJ |
OmniPage
Schedule (ScanSoft, Inc.) |
|
OPK |
Origin
Origin Pack File (OriginLab) |
|
OPL |
Psion
Organiser Programming
Language Source File (Psion
PLC) |
|
OPM |
Quadrox
Digital CCTV System
Components |
|
OPN |
Exact
Active Options |
|
OPN |
Court
Opinion File (Tennessee
Administrative Office of the
Courts) |
|
OPN |
Rebel
Strip Poker Opponent File
(Rebel Software) |
|
OPN |
Strip
Poker Deluxe Opponent File
(Eagle Rock Enterprises,
Inc.) |
|
OPO |
Psion
OPL Output Executable File
(Psion PLC) |
|
OPO |
Psion
Organiser OPL Code (Psion
PLC) |
|
OPP |
IPhoto
File (Keronsoft) |
|
OPS |
Office
Profile Settings File
(Microsoft) |
|
OPS |
Dynamite
VSP Object Placement Style
(3am Solutions (UK) Limited) |
|
OPT |
Delphi
Project Options (Borland
Software Corporation) |
|
OPT |
Developer
Studio File Workspace
Options (Microsoft) |
|
OPT |
Options/Configuration |
|
OPT |
ProWORX
Nxt List Module Option File
(Schneider Electric) |
|
OPT |
QEMM
Optimize |
|
OPT |
Segue
SilkTest Option Set File |
|
OPT |
Psion
Organiser OPL Source (Psion
PLC) |
|
OPT |
pcAnywhere
Option Set File |
|
OPW |
OrgPlus
Organization Chart
(HumanConcepts, LLC) |
|
OPX |
OrgPlus
Organization Chart
(HumanConcepts, LLC) |
|
OPX |
Exact
Inactive Options |
|
OPX |
Flip
Album File |
|
OPX |
OPL
Extension DLL |
|
OPX |
OrgChart
Organization Diagram
(Microsoft) |
|
OPX |
Psion
Organiser Programming
Language (Psion PLC) |
|
OQY |
Excel
OLAP Query File (Microsoft) |
|
OR2 |
Organizer
Ver 2 File (IBM) |
|
OR3 |
Organizer
97 File (IBM) |
|
OR4 |
Organizer
(IBM) |
|
OR5 |
Organizer
(IBM) |
|
OR6 |
Organizer
Data File (IBM) |
|
OR8 |
Rational
Rose Oracle8 Database Model
Report (IBM) |
|
ORA |
Oracle
7 Configuration |
|
ORC |
MIDI
File |
|
ORC |
Oracle
7 Script |
|
ORC |
Digital
Orchestrator Plus Sound File
(Voyetra Turtle Beach, Inc.) |
|
ORD |
BC45
Owl File |
|
ORD |
OMAX
Make Tool Path File (OMAX
Corporation) |
|
ORF |
Descent
3 Outrage Room Format |
|
ORF |
Olympus
Digital Camera Raw Image
File |
|
ORG |
Organiser
(IBM) |
|
ORG |
Microcal
Origin Plot |
|
ORG |
Netmino
File |
|
ORG |
Origin
File |
|
ORI |
Need
for Speed-Hot Pursuit 2 File |
|
ORI |
Original |
|
ORIG |
Gen
Original File |
|
ORIGINAL |
Netobjects
Fusion Components BBScomp
Message File |
|
OS3 |
OS/2
Warp 3 File |
|
OSC |
Formula
One 2001 Options File |
|
OSC |
Fruitypro
Samples SS_effects File |
|
OSC |
Remote
Installation Services Client
Installation Wizard File
(Microsoft) |
|
OSD |
Open
Software Description File
(Microsoft) |
|
OSD |
SoftGrid
Program Description
(Softricity, Inc.) |
|
OSF |
Distribution
Bin File |
|
OSF |
ICZ
OriSAFE |
|
OSF |
Descent
3 Sound File (Outrage
Entertainment) |
|
OSF |
Opera
Skin (Opera Software ASA) |
|
OSG |
OSG321
Software Application Data
File |
|
OSI |
Osiris
Database (The Shmoo Group) |
|
OSI |
SunNet
OSI Description File (Sun) |
|
OSL |
OckamSoft
Log File (Ockam Instruments,
Inc.) |
|
OSS |
Office
Saved Search (Microsoft) |
|
OST |
Exchange
Offline File (Microsoft) |
|
OST |
Outlook
Offline File (Microsoft) |
|
OST |
Tivoli
Storage Manager File (IBM) |
|
OTB |
Nokia
Phone Graphics Editor
(Nokia) |
|
OTB |
On-the-air
Bitmap |
|
OTC |
OpenOffice/StarOffice
OpenDocument (Ver 2) Chart
Template (Sun Microsystems,
Inc.) |
|
OTF |
OnkoS
Text Data File (OnkoS) |
|
OTF |
Open
Type Font Format |
|
OTF |
OpenOffice/StarOffice
OpenDocument (Ver 2) Formula
Template (Sun Microsystems,
Inc.) |
|
OTG |
OpenOffice/StarOffice
OpenDocument (Ver 2)
Graphics Document Template
(Sun Microsystems, Inc.) |
|
OTH |
Power
Toys Other Folder Explorer
Tool |
|
OTH |
Origin
Graph Properties File
(OriginLab Corporation) |
|
OTH |
OpenOffice/StarOffice
OpenDocument (Ver 2) HTML
Text Template (Sun
Microsystems, Inc.) |
|
OTHERFOLDER |
Power
Toys Other Folder Explorer
Tool |
|
OTI |
OpenOffice/StarOffice
OpenDocument (Ver 2) Image
Template (Sun Microsystems,
Inc.) |
|
OTL |
Fookes
Super NoteTab Template File |
|
OTL |
NoteTab
Outline |
|
OTL |
OpenTrap
Event Log |
|
OTL |
Ventura
Publisher's Type Foundry
Outline Editor format |
|
OTL |
Z-Soft
Type Foundry Font |
|
OTM |
Origin
Matrix Template File
(OriginLab) |
|
OTM |
Outlook
VBA Module (Microsoft) |
|
OTN |
OmniPage
Training File (ScanSoft,
Inc.) |
|
OTP |
Origin
Graphic Template File
(OriginLab) |
|
OTP |
Top
Secret Crypto Gold One Time
Pad Key File (TAN$TAAFL
Software Company) |
|
OTP |
OpenOffice/StarOffice
OpenDocument (Ver 2)
Presentation Template (Sun
Microsystems, Inc.) |
|
OTS |
OtsJuke
Sound File |
|
OTS |
OpenOffice/StarOffice
OpenDocument (Ver 2)
Spreadsheet Template (Sun
Microsystems, Inc.) |
|
OTT |
Nokia
Phone Ring Tone (Nokia) |
|
OTT |
OpenOffice/StarOffice
OpenDocument (Ver 2) Text
Document Template (Sun
Microsystems, Inc.) |
|
OTW |
Origin
Worksheet Template File
(OriginLab) |
|
OTX |
Olivetti
Olitext Plus File |
|
OU! |
OzWin
CompuServe E-mail/Forum
Access Outbound Messages
Online |
|
OUT |
Outlines
or Output File |
|
OUT |
OzWin
CompuServe E-mail/Forum
Access Outbound Messages |
|
OUT |
Pro/ENGINEER
Temporary File (PTC) |
|
OUT |
NovaBACKUP
Backup Set (NovaStor
Corporation) |
|
OUT |
MyInfo
Documnet/Outline (Milenix
Software) |
|
OV |
OpenInsight
Database Overflow File
(Revelation Software) |
|
OV |
OrgPlus
OrgViewer File
(HumanConcepts, LLC) |
|
OV1 |
Program
File - Overlay |
|
OV2 |
Program
File - Overlay |
|
OV3 |
Program
File - Overlay |
|
OVA |
Sierra
Web Studio Graphic |
|
OVA |
Web
Studio Project Page (Back To
The Beach Software, LLC) |
|
OVB |
OnkoS
Vocabulary Backup File
(OnkoS) |
|
OVD |
ObjectVision
Datafile (Application)
(Borland Software
Corporation) |
|
OVE |
Cakewalk
Overture Score (Cakewalk) |
|
OVL |
Program
File - Overlay |
|
OVL |
RollerCoaster
Tycoon Program Sprite
(Atari) |
|
OVM |
BHV
Tonstudio Platin File |
|
OVR |
Program
File - Overlay |
|
OVW |
Cool
Edit Pro Overview File |
|
OVW |
Cubase
.WAV File Image (Steinberg) |
|
OVW |
DIANA
Overview File |
|
OVX |
Psion
Oval Control (Psion PLC) |
|
OW |
Free
Pascal Object File for
Windows Version (FPC
Development Team) |
|
OWD |
OpenWire
Project |
|
OWF |
OnkoS
Wave Data File (OnkoS) |
|
OWL |
BC45
Owl File |
|
OWS |
Web
Studio Project File (Back To
The Beach Software, LLC) |
|
OX |
Ox
Object-Oriented Matrix
Programming Language File |
|
OXB |
OlapX
Report Portfolio (OlapX
Software) |
|
OXC |
OlapX
Cube Definition File (OlapX
Software) |
|
OXL |
OMEGA
Product Suite File |
|
OXO |
DB-MAIN
Compiled Voyager-2 Program |
|
OXO |
Ox
Object-Oriented Matrix
Programming Language File |
|
OXV |
OlapX
Local View File (OlapX
Software) |
|
OYB |
Organize
Your Beanie Babies Data File |
|
OYZ |
Lotus
Approach Alternate dBASE
Index |
|
OZF2 |
OziExplorer
Map (Des & Lorraine Newman) |
|
OZM |
Sharp
Organizer Memo Bank |
|
OZP |
Sharp
Organizer Telephone Bank |
