Category

Sorted alphabetically: O

id File extension File name
0 .O file extension Object
1 .OCX file extension ActiveX Control
2 .ODF file extension Open Document Interchange Format (ODIF)
3 .ODG file extension OpenDocument Drawing
4 .ODS file extension OpenDocument Spreadsheet
5 .ODT file extension ODF Text Document
6 .OFX file extension Open Financial Exchange Format
7 .OGG file extension Ogg Vorbis Audio
8 .OGV file extension Ogg Vorbis Video
9 .OLD file extension Backup
10 .ONE file extension Microsoft OneNote Document
11 .ONEPKG file extension Microsoft OneNote Package
12 .OPML file extension OPML Outline Processor Markup Language File Format
13 .ORF file extension Olympus Digital Camera Raw Image File
14 .OTF file extension OpenType Font File Format
15 .OTT file extension OpenOffice.org Text Document Template
16 .OVA file extension Open Virtual Machine Format
17 .OXPS file extension Windows 8 OpenXPS Document
18 .O01 file extension Typhoon Voice
19 .O2C file extension Objects To See 3D File Format
20 .O3D file extension Google Open 3D Web Graphic Format
21 .O8D file extension OCTGN Deck
22 .O8G file extension OCTGN Game Definition
23 .O8O file extension Mediator 5 Repository Tabs Vorlagen.006
24 .O8S file extension OCTGN Set
25 .OA0 file extension B.O.U.T. Evolution Texture
26 .OA2 file extension Fujitsu OASYS 2 Document
27 .OA3 file extension OASYS 3 Document
28 .OAB file extension Microsoft Outlook Offline Address Book
29 .OAD file extension Suite Notaro Document
30 .OAF file extension ETH Oberon Applet
31 .OAM file extension Adobe Edge Overlay
32 .OAP file extension Samsung Bada Signed Installation Package
33 .OAR file extension HSQLDB Database
34 .OAS file extension Fujitsu OAS Document
35 .OAT file extension Google Android RunTime Code
36 .OAV file extension Microsoft Flight Simulator Texture
37 .OAW file extension OpenArchitectureWare Workflow
38 .OAZ file extension NetFax Manager OAZ Fax Image
39 .OB file extension IBM LinkWay Object
40 .OB! file extension Orbit Downloader Incomplete Download
41 .OB3 file extension ABF Software Outlook Backup Backup
42 .OB5 file extension TopLang OE Backup
43 .OBAK file extension WinSQL Offline Backup
44 .OBB file extension Google Android Opaque Binary Blob
45 .OBC file extension AICON 3D Scanner Photogrammetry
46 .OBD file extension Microsoft Office Binder Document
47 .OBF file extension OsmAnd Offline GPS Vector Maps
48 .OBG file extension ZBrush Mesh
49 .OBI file extension Microsoft Outlook 2007/2010/2013 RSS Subscription
50 .OBJ file extension Intel (Object Module Format) Relocatable Object Module
51 .OBJECTCACHE file extension Cache
52 .OBJX file extension Metatools Object Bryce Support
53 .OBK file extension OrCAD Capture Design Or Library
54 .OBL file extension TrueSpace
55 .OBML file extension Opera Mini Saved Web Page
56 .OBML15 file extension Opera Mini 5.1 Saved Web Page
57 .OBPACK file extension ObjectBar Theme Pack
58 .OBR file extension Borland C++ Object Browser Data
59 .OBS file extension WAsP Obstacle List
60 .OBT file extension Microsoft Office Binder Template
61 .OBV file extension 3D Photo Browser Thumbnail Cache
62 .OBW file extension Toontrack Superior Drummer Audio
63 .OBX file extension Rational XDE
64 .OBY file extension EPOC ROM Image
65 .OBYX file extension Obyx Control
66 .OBZ file extension Microsoft Office Binder Wizard
67 .OC9 file extension OrgCon Organization
68 .OCA file extension Visual Basic Control Typelib Cache
69 .OCAMLMAKEFILE file extension Caml Programming Language Makefile
70 .OCB file extension Origin Precompiled Origin C
71 .OCC file extension DB/TextWorks Terms And Words Database
72 .OCD file extension OCAD Digitized Map
73 .OCDC file extension Mathematica Document
74 .OCDF file extension OneClickDigital Mp3 Audio Book
75 .OCE file extension Open Catalog Extension Connection
76 .OCEN file extension EdGCM Data
77 .OCF file extension OM2 Cipher
78 .OCG file extension Osprey Custom Graph
79 .OCH file extension Satellite And Channel Settings Backup
80 .OCI file extension OpenCanvas Image
81 .OCM file extension Netscape Communicator Aim
82 .OCP file extension Advanced Art Studio Image
83 .OCR file extension FaxGrapper FAX Transcribed Text
84 .OCS file extension EDoc DigiSign Digitally Signed Document
85 .OCT file extension RADIANCE Octree Format
86 .OCV file extension OCV Training Data
87 .OCW file extension Oracle Configuration Watch Template
88 .OC_ file extension Compressed ActiveX Control
89 .OD file extension Mascotte Mascopt Request
90 .OD1 file extension Omnis 5 Database
91 .OD2 file extension Omnis 5 Database
92 .OD3 file extension Omnis Studio Database
93 .OD4-9 file extension Omnis5 Database
94 .ODA file extension CALS Group IV Type 2 Raster Image
95 .ODB file extension ArcView Object Database ASCII
96 .ODC file extension OpenOffice.org OpenDocument
97 .ODCCUBEFILE file extension OpenDocument 1
98 .ODCNEWFILE file extension Microsoft Office Data Connection
99 .ODCTABLEFILE file extension Microsoft Office
100 .ODD file extension Coby Voice Recorder Format
101 .ODE file extension Microsoft Office
102 .ODEX file extension Google Android Optimized Executalbe
103 .ODH file extension Microsoft Visual Studio Interface Definition Language
104 .ODI file extension OpenOffice.org Image
105 .ODIF file extension Open Document Interchange Format
106 .ODL file extension Visual C++ ODL Type Library Source
107 .ODM file extension OpenOffice.org OpenDocument Global Text Document
108 .ODN file extension Fluke Power Analyze Database
109 .ODO file extension ICUBE Online Operating System Write Document
110 .ODP file extension OpenOffice.org OpenDocument Presentation
111 .ODR file extension HMI Builder Report
112 .ODT# file extension OpenOffice.org Locked Document
113 .ODTPC file extension Oracle User Productivity Kit Presentation
114 .ODTTF file extension Microsoft Office Document Embedded Font
115 .ODV file extension Ocean Data View Data
116 .ODVI file extension LaTeX
117 .ODX file extension Microsoft BizTalk Server Diagram
118 .ODZ file extension IBM OpenDoc Editor Package
119 .OD_ file extension Oracle Compressed Driver
120 .OEACCAOUNT file extension Windows Mail
121 .OEACCOUNT file extension Windows Mail Account Settings
122 .OEB file extension Outlook Express Backup Wizard
123 .OECL file extension Open EDA Component Library
124 .OEDB file extension Microsoft Email Database
125 .OEF file extension Optim Export
126 .OEM file extension OEM Install Data
127 .OEMIGACCOUNT file extension Outlook Express Temporary
128 .OER file extension AU OER TOOLS Project
129 .OET file extension ESignal Order Entry Ticket
130 .OEX file extension Opera Add-on
131 .OFA file extension Kodak OfotoNow
132 .OFB file extension Oxygen Forensic Suite Backup
133 .OFC file extension Open Financial Connectivity Format
134 .OFD file extension ObjectView Form Definition
135 .OFF file extension DEC 3D Object File Format
136 .OFFICEUI file extension Microsoft Office UI Customization
137 .OFFSETS file extension Offset
138 .OFL file extension OtsTurntables Playlist
139 .OFM file extension Adobe PostScript Font Description
140 .OFN file extension MS Office File New (Other Office Documents)
141 .OFP file extension Objecteering Project
142 .OFR file extension OptimFROG Encoded Audio
143 .OFS file extension OptimFROG Dualstream
144 .OFT file extension Microsoft Outlook Template
145 .OG file extension Atari Jaguar GPU (TOM) Object Code
146 .OGA file extension Ogg Vorbis Audio Profile
147 .OGC file extension Organica Document File Format
148 .OGD file extension Oracle Forms Graph
149 .OGF file extension OnkoS Graphic
150 .OGF2 file extension MapViewGPS Map Coordinates
151 .OGL file extension ATI Overlay Source Code
152 .OGM file extension Ogg Vorbis Media
153 .OGNC file extension Dynamic Web Page
154 .OGO file extension Origin Graphic Object
155 .OGR file extension OGR C++ Open Source Library
156 .OGS file extension Origons Movie List
157 .OGW file extension OriginLab Worksheet
158 .OGX file extension Microsoft C++ Component Gallery Exported Classes And Resources
159 .OGZ file extension Cube 2 Sauerbraten Map
160 .OH file extension DrillAssistant List
161 .OH4 file extension Overhoor List
162 .OHI file extension Openhelp
163 .OHP file extension MS-DOS 7
164 .OHS file extension Bink Outbound History
165 .OHW file extension Overhoor DrillAssistant List
166 .OID file extension HP ProCurve Manager Network Device
167 .OIF file extension QuickBase Web-sharable Database Interchange
168 .OIL file extension Open Image Library Format Image Format
169 .OIT file extension SleepScan And Ceegraph Offset Index
170 .OJ file extension Atari Jaguar DSP (JERRY) Object Module
171 .OJP file extension 3WayPack
172 .OK file extension QEDIT
173 .OKF file extension OKF Font File Format
174 .OKM file extension OkMap Map Defining
175 .OKOZO file extension Okozo Desktop Animation
176 .OKR file extension PowerRecover One Key Recovery
177 .OKS file extension OKScript
178 .OKT file extension Oktalyzer Music Module (MOD)
179 .OKX file extension OKScript
180 .OL file extension Valve Hammer Object Layout
181 .OLB file extension Microsoft Office OLE Object Library
182 .OLB2 file extension CanOpener Library
183 .OLE file extension Microsoft Object Linking And Embedding
184 .OLE2 file extension Microsoft Office Binary Document Container Format
185 .OLF file extension OyezForms Legal Documents
186 .OLK file extension Microsoft Outlook Address Book
187 .OLK14CATEGORY file extension Microsoft Outlook 2011 For Mac Category
188 .OLK14CONTACT file extension Microsoft Outlook 2011 For Mac Contact
189 .OLK14DBHEADER file extension Microsoft Outlook 2011 For Mac Database
190 .OLK14FOLDER file extension Microsoft Outlook 2011 For Mac Folder
191 .OLK14MAILACCOUNT file extension Microsoft Outlook 2011 For Mac Mail Account Settings
192 .OLK14MESSAGE file extension Microsoft Outlook 2011 For Mac Message
193 .OLK14MSGATTACH file extension Microsoft Outlook 2011 For Mac Message Attachment
194 .OLK14MSGSOURCE file extension Microsoft Outlook 2011 For Mac Message Source
195 .OLK14PREF file extension Microsoft Outlook 2011 For Mac Preferences
196 .OLK14RECENT file extension Microsoft Outlook 2011 For Mac Recent Address
197 .OLK14RULE file extension Microsoft Outlook 2011 For Mac Rule
198 .OLK14SCHEDULE file extension Microsoft Outlook 2011 For Mac Schedule
199 .OLK14SEARCH file extension Microsoft Outlook 2011 For Mac Saved Search
200 .OLK14SIGNATURE file extension Microsoft Outlook 2011 For Mac Signature
201 .OLK14UID file extension Microsoft Outlook 2011 For Mac UID
202 .OLL file extension TrialDirector Load
203 .OLM file extension Microsoft Outlook For Mac Data
204 .OLN file extension Microsoft Visual C++ Outline Examples
205 .OLPROJ file extension Adobe OnLocation
206 .OLS file extension Microsoft Office List Shortcut
207 .OLT file extension Orbit Downloader Download List
208 .OLV file extension Roller Coaster Tycoon
209 .OLY file extension AFP Advanced Function Presentation Overlay Resource
210 .OMA file extension Sony OpenMG Music Format
211 .OMB file extension Omnibus Offline Web Storage
212 .OMC file extension Sony Music Store ATRAC3 Audio
213 .OMD file extension MapInfo Routing J Server Data
214 .OMEG file extension Mathematica For Mac
215 .OMF file extension OMF Operation, Management & Finance Database
216 .OMFI file extension Open Media Framework
217 .OMG file extension O&O DiskImage Backup
218 .OML file extension TracePro Model
219 .OMN file extension Omnipotent Collection
220 .OMO file extension OMake Object
221 .OMOD file extension Oblivion Mod Manager Mod
222 .OMP file extension OpenMind Project
223 .OMR file extension OMR Template
224 .OMS file extension Order Maven
225 .OMT file extension SITH HLA Object Model Template
226 .OMW file extension Omweso
227 .OMX file extension OtsAV Media Library Information
228 .OMZ file extension Market Data
229 .ON2 file extension On2 Encoded FLV
230 .OND file extension Lotus Notes
231 .ONEBIN file extension OneNote
232 .ONECACHE file extension Microsoft OneNote Cache
233 .ONETMP file extension Microsoft OneNote Temporary
234 .ONETOC file extension Microsoft OneNote Table Of Contents
235 .ONETOC2 file extension Microsoft OneNote Table Of Contents
236 .ONLINERESOURCES file extension Online Resources
237 .ONM file extension Outdoor Navigator Map
238 .ONPF file extension Apple DocViewer
239 .ONT file extension TheWord Module
240 .ONTX file extension TheWord Encrypted Module
241 .ONW file extension Omron HMI NTST
242 .ONX file extension OnyxGrass Image
243 .OO3 file extension Omni Group Outliner 3
244 .OOB file extension Steel Panthers World At War
245 .OOG file extension PyGraph Python Graphics Interface Object Oriented Graphics
246 .OOGL file extension Geomview Object Oriented Graphics Library
247 .OOK file extension Arachne Batch Script
248 .OOM file extension Shroom Swap
249 .OOP file extension OOP Packer Archive
250 .OOPS file extension Oops
251 .OOS file extension OpenOffice.org Spreadsheet
252 .OOT file extension OpenOffice.org Text
253 .OP file extension ESignal OptionsPlus
254 .OP2 file extension Outpost 2 Saved Game
255 .OP4 file extension Nastran Output
256 .OPA file extension Psion OPL Object
257 .OPAL file extension Microsoft Office Customization Tool (OCT) Language-specific Settings
258 .OPAX file extension Microsoft Office Customization Tool (OCT) Standard Settings
259 .OPB file extension Bryce Object
260 .OPC file extension Microsoft Office 97 Upgrade Control
261 .OPD file extension Durango Interferometry Software Document
262 .OPDOWNLOAD file extension Opera Next Incomplete Download
263 .OPEF file extension OmniPass Encrypted Folder
264 .OPENBSD file extension OpenBSD Readme
265 .OPENTAG file extension OpenTag
266 .OPF file extension FlipAlbum Album
267 .OPG file extension Offline Plan Generation Package
268 .OPH file extension Clipboard
269 .OPI file extension Adlib OCR Processing Information
270 .OPJ file extension OrCAD Capture Project
271 .OPK file extension Sinking Island/LIle Noyée Game
272 .OPL file extension Psion OPL Language Source Code
273 .OPLC file extension Nokia Logo
274 .OPLM file extension Outline Processor Markup Language
275 .OPN file extension Court Opinion
276 .OPO file extension Psion OPL Object
277 .OPP file extension IPhotoDVD
278 .OPPC file extension Space Marine Game Resource Package
279 .OPQ file extension Eschalon: Book I Game
280 .OPR file extension OPRO X Browser
281 .OPS file extension Microsoft Office Profile Settings
282 .OPT file extension Digital Line Graph Optional Vector Data
283 .OPTIONS file extension Eclipse IDE Trace Options
284 .OPTS file extension Linux Configuration Options
285 .OPUS file extension Opus Audio
286 .OPV file extension OpenPanorama Visit
287 .OPW file extension OrgPlus For Windows Organization Chart
288 .OPX file extension Microsoft Office Organization Chart File Format
289 .OPXT file extension OrpPlus Template
290 .OPY file extension OptiY Model
291 .OPZ file extension OPTech
292 .OP_ file extension GKSetup Support
293 .OQY file extension Microsoft Excel OLAP Query
294 .OR2 file extension Lotus Organizer 2
295 .OR3 file extension IBM Lotus Organizer 97
296 .OR4 file extension Lotus Organizer Data
297 .OR5 file extension IBM Lotus Organizer
298 .OR6 file extension Lotus Organizer Data
299 .OR8 file extension Rational Rose Oracle8 Database Model Report
300 .ORA file extension Oracle Database Parameter Configuration
301 .ORB file extension Evanidus Data
302 .ORC file extension Oracle 7 Script
303 .ORD file extension OMAX Routed Data File
304 .ORDEREDTEST file extension Microsoft Visual Studio Ordered Test
305 .ORE file extension Narbacular Drop Game Content
306 .ORG file extension SoundBlaster Pro Organ Files
307 .ORG2+ file extension Lotus Organizer
308 .ORI file extension Need For Speed - Hot Pursuit
309 .ORIG file extension Original
310 .ORIGINAL file extension Netobjects Fusion Components Bbscomp Message
311 .ORIGINAL_EPUB file extension EPUB Ebook Backup
312 .ORIGINAL_MOBI file extension MOBI Ebook Backup
313 .ORK file extension Warhammer Mark Of Chaos Game Archive
314 .ORL file extension Object-Relational Language
315 .ORMDESIGNER file extension ORM Designer Project
316 .ORP file extension WinSLAM
317 .ORQ file extension Online Certificate Status Protocol (OCSP) Request
318 .ORS file extension Online Certificate Status Protocol
319 .ORT file extension COREX Orthographic Transcriptions
320 .ORV file extension Oracom Video
321 .ORX file extension RadiantOne Virtual Directory Server Database Schema
322 .ORZ file extension Holic Game
323 .OS2 file extension Os2 System
324 .OS3 file extension OS/2 Warp 3
325 .OSA file extension W32/Sober-AD
326 .OSAS file extension Apple Script Library Tani Script
327 .OSAX file extension FindFile OSAX Mac File Type
328 .OSB file extension Sega Dreamcast Sounds
329 .OSBX file extension OneSafe Exported Backup
330 .OSC file extension Formula One 2001 Options
331 .OSCD file extension TouchOSC Interface Editor Template
332 .OSD file extension Open Software Description
333 .OSDX file extension Microsoft Windows Search Connector
334 .OSF file extension Descent 3 Sound
335 .OSG file extension OSGJS JSON Input
336 .OSI file extension Osiris Database
337 .OSK file extension Osu! Skin
338 .OSL file extension OckamSoft Log
339 .OSM file extension OpenStreetMap Data
340 .OSP file extension Crystal Semiconductor Driver Data
341 .OSR file extension Osu! Game Replay
342 .OSS file extension Microsoft Office Saved Search
343 .OST file extension Microsoft Outlook Inbox Off-line Folder
344 .OSU file extension Osu! Dialog
345 .OSW file extension ONESWING Contents
346 .OSX file extension Apple Mac OS PowerPC Executable
347 .OSZ file extension Osu! Beatmap
348 .OT file extension Atari Jaguar (TOM) Object Code
349 .OTA file extension OTA Bitmap
350 .OTB file extension Nokia OTA Bitmap
351 .OTC file extension OpenDocument Chart Template
352 .OTD file extension OpenIV Texture Data
353 .OTG file extension OpenOffice.org Graphics Document Template
354 .OTH file extension Microsoft PowerToys Explorer Tool
355 .OTI file extension OpenDocument Image Template
356 .OTL file extension Super NoteTab Template
357 .OTLB file extension Microsoft OLE Type File For Mac
358 .OTLN file extension Opal Outline
359 .OTM file extension Microsoft Outlook Macro
360 .OTP file extension Origin Graphic Template
361 .OTR file extension IRIX Complied FTR
362 .OTRKEY file extension OTRKEY Encoded Video
363 .OTS file extension OpenOffice.org OpenDocument Spreadsheet Template
364 .OTV file extension Rotor-Disc OTV Kit OTV Calibration
365 .OTX file extension TheWord Encrypted Module
366 .OTZ file extension OpenLP Theme
367 .OUT file extension Output
368 .OUTLINE file extension FontTwister Letter Outline
369 .OUTLOOK97 file extension Microsoft Outlook Custom Mail
370 .OUX file extension Bibexcel
371 .OV file extension OpenInsight Database Overflow
372 .OV0 file extension Objective Voice E-mail For Windows
373 .OV1 file extension Overlay
374 .OV2 file extension Overlay
375 .OV3 file extension Overlay
376 .OV4 file extension Overlay
377 .OV5 file extension Overlay
378 .OVB file extension OnkoS Vocabulary Backup
379 .OVD file extension ObjectVision Data
380 .OVE file extension Overture Music Score
381 .OVF file extension Open Virtualization Format Package
382 .OVG file extension ObjectVision Converted Graphic
383 .OVH file extension OMSI Bus Settings
384 .OVL file extension RollerCoaster Tycoon 3 Sprite
385 .OVM file extension BHV Tonstudio
386 .OVOLOG file extension OoVoo Log
387 .OVPN file extension OpenVPN Config
388 .OVR file extension Overlay
389 .OVS file extension Ovation 1 Style Sheet
390 .OVW file extension Cool Edit Pro Overview
391 .OVX file extension Psion Oval Control
392 .OW file extension Free Pascal For Windows Object
393 .OWC file extension OutWit Hub OutWit Catch Db Format
394 .OWD file extension OpenWire Project
395 .OWG file extension OutWit Hub OutWit Gear Outwit Thesaurus Db
396 .OWL file extension OWL (Obfuscated Weird Language) Source Code
397 .OWM file extension OutWit Hub OutWit Mashup XML Format
398 .OWR file extension PeopleSoft Results Archive
399 .OWS file extension Web Studio Project
400 .OWT file extension Ancestry.com OneWorldTree
401 .OX file extension Ox Object-oriented Matrix Programming Language
402 .OX2 file extension Orangutan X2 Firmware Update
403 .OXD file extension PS3 Proxy Server
404 .OXE file extension Pulsar/SCOPE Z.matrix
405 .OXF file extension IBM Rational Rhapsody
406 .OXM file extension Ogg Compressed Xm
407 .OXO file extension Ox Object-Oriented Matrix Programming Language
408 .OXR file extension Virus Safe Web Driver
409 .OXT file extension OpenOffice.org Extension Help Format
410 .OYX file extension IBM Lotus Approach Alternate Database Index
411 .OYZ file extension Lotus Approach Alternate DBASE Index
412 .OZ file extension Opera Job Management Compressed
413 .OZD file extension Win32.TrojanDownloader.Agent.OZD Trojan
414 .OZF2 file extension OziExplorer Map
415 .OZFX3 file extension OziExplorer Image
416 .OZJ file extension Mu Online Graphic
417 .OZP file extension Sharp Organizer Telephone Bank
418 .OZT file extension Mu Online Texture