Sorted alphabetically: O

#File extensionThe full name of the file
 
1 O File Extension Compiled Object Format
2 O01 File Extension Typhoon Voice
3 O2C File Extension Objects To See 3D
4 O8D File Extension OCTGN Deck
5 O8G File Extension OCTGN Game Definition
6 O8O File Extension Mediator 5 Repository Tabs Vorlagen.006
7 O8S File Extension OCTGN Set
8 OAB File Extension Offline Address Book
9 OAD File Extension Suite Notaro Document
10 OAF File Extension Microsoft Flight Simulator Texture
11 OAM File Extension Adobe Edge Animate Widget Format
12 OAP File Extension Samsung Bada Signed Installation Package
13 OAR File Extension OpenSimulator Archive
14 OAS File Extension Microsoft Outlook Attachment Sniffer
15 OAT File Extension Google Android RunTime Code
16 OAV File Extension Microsoft Flight Simulator Texture
17 OAW File Extension OpenArchitectureWare Workflow
18 OAZ File Extension NetFax Manager OAZ Fax Image
19 OB File Extension IBM LinkWay Object
20 OB! File Extension Orbit Downloader Incomplete Download
21 OB3 File Extension ABF Software Outlook Backup Backup
22 OB5 File Extension TopLang OE Backup
23 OBAK File Extension WinSQL Offline Backup
24 OBB File Extension Android Opaque Binary Blob Format
25 OBD File Extension Office Binder Document
26 OBF File Extension OsmAnd Offline GPS Vector Maps
27 OBG File Extension ZBrush Mesh
28 OBI File Extension Outlook RSS Subscription Format
29 OBJ File Extension Wavefront 3D Object Format
30 OBJX File Extension Metatools Object Bryce Support
31 OBK File Extension OrCAD Capture Design Or Library
32 OBL File Extension TrueSpace
33 OBM File Extension EIAS Camera Motion Export Format
34 OBML File Extension Opera Mini Saved Web Page
35 OBML15 File Extension Opera Mini 5.1 Saved Web Page
36 OBP File Extension Bryce Object Format
37 OBPACK File Extension ObjectBar Theme Pack
38 OBR File Extension Borland C++ Object Browser Data
39 OBS File Extension WAsP Obstacle List
40 OBT File Extension Openbox Theme Format
41 OBV File Extension 3D Photo Browser Thumbnail Cache
42 OBW File Extension Superior Drummer Sounds Format
43 OBX File Extension Rational XDE
44 OBYX File Extension Obyx Control
45 OBZ File Extension Compressed 3D Object Format
46 OC3 File Extension OpenCanvas 3 Event Format
47 OC4 File Extension OpenCanvas 4 Event Format
48 OC5 File Extension OpenCanvas 5 Event Format
49 OC9 File Extension OrgCon Organization
50 OCA File Extension Custom Control Library Type Format
51 OCAMLMAKEFILE File Extension Caml Programming Language Makefile
52 OCB File Extension Origin Precompiled Origin C
53 OCC File Extension Oceanic DataPool Format
54 OCD File Extension OCAD Map Format
55 OCDC File Extension Mathematica Document
56 OCDF File Extension OneClickDigital Mp3 Audio Book
57 OCE File Extension Open Catalog Extension Connection Format
58 OCEN File Extension EdGCM Data
59 OCF File Extension OM2 Cipher
60 OCG File Extension Osprey Custom Graph
61 OCI File Extension OpenCanvas Image
62 OCL File Extension Object Constraint Language Data Format
63 OCM File Extension Netscape Communicator Aim
64 OCP File Extension Advanced Art Studio Image
65 OCR File Extension FAXGrapper Fax Text Format
66 OCT File Extension Radiance Octree Format
67 OCTEST File Extension Xcode Objective-C Unit Test Bundle
68 OCV File Extension OCV Training Data
69 OCX File Extension ActiveX Control
70 OC_ File Extension Compressed ActiveX Control
71 OD File Extension Mascopt Graph Request Format
72 OD1 File Extension Omnis 5 Database
73 OD2 File Extension Omnis 5 Database
74 OD3 File Extension Omnis Studio Database
75 OD4-9 File Extension Omnis5 Database
76 OD5 File Extension Omnis 5 Database Format
77 ODB File Extension OpenDocument Database
78 ODC File Extension Office Data Connection Format
79 ODCCUBEFILE File Extension OpenDocument 1
80 ODCDATABASEFILE File Extension Microsoft Office Data Format
81 ODCNEWFILE File Extension Microsoft Office Data Connection
82 ODCTABLEFILE File Extension Microsoft Office
83 ODE File Extension Microsoft Office
84 ODEX File Extension Google Android Optimized Executalbe
85 ODF File Extension OpenDocument Formula
86 ODG File Extension OpenDocument Graphic Format
87 ODH File Extension Microsoft Visual Studio Interface Definition Language
88 ODI File Extension OpenDocument Image
89 ODIF File Extension Open Document Interchange Format
90 ODL File Extension Object Description Language Format
91 ODM File Extension OverDrive Media Format
92 ODO File Extension Online Operating System Write Document
93 ODP File Extension OpenDocument Presentation
94 ODR File Extension HMI Builder Report Format
95 ODS File Extension OpenDocument Spreadsheet
96 ODT File Extension OpenDocument Text Document
97 ODT# File Extension OpenOffice.org Locked Document
98 ODTPC File Extension Oracle User Productivity Kit Presentation
99 ODTTF File Extension Microsoft Office Document Embedded Font
100 ODV File Extension Ocean Data View Data
101 ODVI File Extension LaTeX
102 ODX File Extension BizTalk Server Orchestration Format
103 OD_ File Extension Oracle Compressed Driver
104 OEACCAOUNT File Extension Windows Mail
105 OEACCOUNT File Extension Windows Mail Account Format
106 OEB File Extension Outlook Express Backup Wizard Format
107 OECL File Extension Open EDA Component Library
108 OEF File Extension Optim Export
109 OEM File Extension OEM Setup Format
110 OEMIGACCOUNT File Extension Outlook Express Temporary
111 OET File Extension ESignal Order Entry Ticket
112 OEX File Extension Opera Extension
113 OFA File Extension Kodak OfotoNow
114 OFB File Extension Oxygen Forensic Suite Backup
115 OFC File Extension Open Financial Connectivity Format
116 OFD File Extension ObjectView Form Definition
117 OFF File Extension Object Format Format
118 OFFICEUI File Extension Microsoft Office UI Customization
119 OFFSETS File Extension Offset
120 OFL File Extension Ots Format List
121 OFM File Extension Melco Embroidery Format
122 OFN File Extension MS Office Format New (Other Office Documents)
123 OFP File Extension Objecteering Project
124 OFR File Extension OptimFROG Audio Format
125 OFS File Extension OptimFROG Dualstream
126 OFT File Extension Outlook Format Template
127 OFX File Extension Open Financial Exchange Format
128 OGA File Extension Ogg Vorbis Audio Format
129 OGD File Extension Oracle Forms Graph
130 OGF File Extension S.T.A.L.K.E.R. Model Format
131 OGG File Extension Ogg Vorbis Audio Format
132 OGL File Extension ATI Overlay Source Code
133 OGM File Extension Ogg Media Format
134 OGNC File Extension Dynamic Web Page
135 OGO File Extension Origin Graphic Object
136 OGR File Extension OGR C++ Open Source Library
137 OGRE File Extension OGRE 3D Data Format
138 OGS File Extension Origons Movie Data Format
139 OGV File Extension Ogg Video Format
140 OGW File Extension OriginLab Worksheet
141 OGX File Extension Ogg Vorbis Multiplexed Media Format
142 OGZ File Extension Cube 2 Map Format
143 OH File Extension DrillAssistant List
144 OH4 File Extension Overhoor List
145 OHP File Extension MS-DOS 7
146 OHS File Extension Bink Outbound History
147 OHW File Extension Overhoor DrillAssistant List
148 OIF File Extension QuickBase Web-sharable Database Interchange
149 OIL File Extension Open Image Library Format Image Format
150 OJP File Extension 3WayPack
151 OK File Extension Qedit
152 OKM File Extension OkMap Map Defining
153 OKOZO File Extension Okozo Desktop Animation
154 OKR File Extension PowerRecover One Key Recovery
155 OKS File Extension OKScript
156 OKT File Extension Oktalyzer Module
157 OKX File Extension OKScript
158 OL File Extension Valve Hammer Object Layout
159 OLA File Extension Online Access Format
160 OLB File Extension OLE Object Library
161 OLB2 File Extension CanOpener Library
162 OLD File Extension Backup Format
163 OLE File Extension Microsoft Object Linking And Embedding
164 OLE2 File Extension Microsoft Office Binary Document Container Format
165 OLF File Extension OyezForms Legal Documents
166 OLK File Extension Outlook Address Book Format
167 OLK14CATEGORY File Extension Outlook Category Format
168 OLK14CONTACT File Extension Outlook Contact Format
169 OLK14DBHEADER File Extension Microsoft Outlook 2011 For Mac Database
170 OLK14EVENT File Extension Outlook Calendar Event Format
171 OLK14EXACCOUNT File Extension Microsoft Outlook 2011 For Mac Data Format
172 OLK14FOLDER File Extension Microsoft Outlook 2011 For Mac Folder
173 OLK14GROUP File Extension Outlook Group Format
174 OLK14IMAPSYNCMAP File Extension Microsoft Outlook 2011 For Mac Data Format
175 OLK14MAILACCOUNT File Extension Outlook Mail Account Format
176 OLK14MESSAGE File Extension Outlook Message Format
177 OLK14MSGATTACH File Extension Microsoft Outlook 2011 For Mac Message Attachment
178 OLK14MSGSOURCE File Extension Outlook Email Message Data Format
179 OLK14NOTE File Extension Outlook Note Format
180 OLK14PREF File Extension Outlook Preferences Format
181 OLK14RECENT File Extension Microsoft Outlook 2011 For Mac Recent Address
182 OLK14RULE File Extension Microsoft Outlook 2011 For Mac Rule
183 OLK14SCHEDULE File Extension Microsoft Outlook 2011 For Mac Schedule
184 OLK14SEARCH File Extension Microsoft Outlook 2011 For Mac Saved Search
185 OLK14SIGNATURE File Extension Outlook Signature Format
186 OLK14TASK File Extension Outlook Task Format
187 OLK14UID File Extension Microsoft Outlook 2011 For Mac UID
188 OLL File Extension TrialDirector Load
189 OLM File Extension Mac Outlook Database Format
190 OLN File Extension Microsoft Visual C++ Outline Examples
191 OLPROJ File Extension Adobe OnLocation
192 OLR File Extension Openlab RAW Image Format
193 OLS File Extension Microsoft Office List Shortcut
194 OLT File Extension Orbit Downloads List
195 OLV File Extension Roller Coaster Tycoon
196 OLY File Extension AFP Advanced Function Presentation Overlay Resource
197 OMA File Extension Sony OpenMG Music Format
198 OMC File Extension Origin Customized Menu
199 OMCS File Extension Office Manager Access Format
200 OMD File Extension MapInfo Routing J Server Data
201 OMEG File Extension Mathematica For Mac
202 OMF File Extension Open Media Framework Format
203 OMFI File Extension Open Media Framework
204 OMG File Extension O&O DiskImage Backup Format
205 OML File Extension TracePro Model
206 OMN File Extension Omnipotent Collection
207 OMO File Extension OMake Object Format
208 OMOD File Extension Oblivion Mod Archive
209 OMP File Extension Office Manager Document Archive
210 OMR File Extension OMR Template
211 OMS File Extension Order Maven
212 OMT File Extension SITH HLA Object Model Template
213 OMU File Extension XWE Data Format
214 OMX File Extension OtsAV Media Library Information Format
215 ON2 File Extension On2 Encoded FLV
216 ONB File Extension OpenModelica Document Format
217 ONBATCH File Extension ON1 Photo Data Format
218 OND File Extension Lotus Notes Encapsulated Memo Format
219 ONE File Extension OneNote Document
220 ONECACHE File Extension Microsoft OneNote Cache
221 ONEFFECTS File Extension Perfect Effects Data Format
222 ONEPKG File Extension Microsoft OneNote Package Format
223 ONETMP File Extension Microsoft OneNote Temporary
224 ONETOC File Extension Microsoft OneNote Table Of Contents
225 ONETOC2 File Extension Microsoft OneNote Table Of Contents Format
226 ONM File Extension Outdoor Navigator Map
227 ONRESIZE File Extension Perfect Effects Data Format
228 ONT File Extension TheWord Bible Text Module
229 ONTX File Extension TheWord Encrypted Bible Text Module
230 ONW File Extension Omron HMI NTST
231 ONX File Extension OnyxGrass Image
232 OO3 File Extension OmniOutliner 3 Format
233 OODAGTRPD File Extension O&O Defrag Binary Report Format
234 OODBRI File Extension O&O Defrag Binary Report Format
235 OOG File Extension PyGraph Python Graphics Interface Object Oriented Graphics
236 OOGL File Extension Geomview Object Oriented Graphics Library
237 OOK File Extension Arachne Batch Script
238 OOPS File Extension Oops Format
239 OOS File Extension OpenOffice.org Spreadsheet
240 OOT File Extension OpenOffice.org Text
241 OP File Extension ESignal OptionsPlus
242 OP2 File Extension Outpost 2 Saved Game
243 OP4 File Extension Nastran Output
244 OPA File Extension Fly! RAW Image Opacity Map
245 OPAL File Extension Microsoft Office Customization Tool (OCT) Language-specific Settings
246 OPAX File Extension Microsoft Office Customization Tool (OCT) Standard Settings
247 OPB File Extension Bryce Object
248 OPC File Extension Microsoft Office 97 Upgrade Control
249 OPD File Extension Durango Interferometry Software Document Format
250 OPDOWNLOAD File Extension Opera Partially Downloaded Format
251 OPEF File Extension OmniPass Encrypted Folder
252 OPENBSD File Extension OpenBSD Readme Format
253 OPF File Extension Open Packaging Format Format
254 OPG File Extension Offline Plan Generation Package
255 OPI File Extension Adlib OCR Processing Information
256 OPJ File Extension OrCAD Project Format
257 OPK File Extension Sinking Island/LIle Noyée Game
258 OPLC File Extension Nokia Operator Logo Format
259 OPLM File Extension Outline Processor Markup Language
260 OPLX File Extension Omniplan Project Document Format
261 OPML File Extension Outline Processor Markup Language Format
262 OPN File Extension Court Opinion
263 OPP File Extension IPhotoDVD
264 OPPC File Extension Space Marine Game Resource Package
265 OPQ File Extension Eschalon: Book I Game
266 OPR File Extension OPRO X Browser
267 OPS File Extension Office Profile Settings Format
268 OPT File Extension MySQL Database Data Format
269 OPTIONS File Extension SE-SOFT Configuration Format
270 OPTS File Extension Linux Configuration Options Format
271 OPUS File Extension Opus Audio Format
272 OPUSCERT File Extension Directory Opus Certificate Format
273 OPW File Extension OrgPlus For Windows Organization Chart
274 OPX File Extension OrgPlus Org Chart
275 OPXT File Extension OrpPlus Template
276 OPY File Extension OptiY Model
277 OP_ File Extension GKSetup Support
278 OQY File Extension Excel OLAP Query Format
279 OR2 File Extension Lotus Organizer 2 Format
280 OR3 File Extension IBM Lotus Organizer 97 Format
281 OR4 File Extension IBM Lotus Organizer 97 GS Format
282 OR5 File Extension Lotus Organizer 5 Format
283 OR6 File Extension Lotus Organizer 6 Format
284 OR8 File Extension Rational Rose Oracle8 Database Model Report
285 ORA File Extension Oracle Database Configuration Format
286 ORB File Extension Original EBook Reader Ebook
287 ORC File Extension CSound Orchestra Midi Format
288 ORD File Extension OMAX Routed Data Format
289 ORDEREDTEST File Extension Visual Studio Ordered Test Format
290 ORE File Extension Ore Executable Format
291 ORF File Extension Olympus RAW Format
292 ORG File Extension Lotus Organizer Format
293 ORG2+ File Extension Lotus Organizer
294 ORI File Extension Original Format
295 ORIG File Extension Original Format
296 ORIGINAL File Extension Netobjects Fusion Components Bbscomp Message
297 ORIGINAL_EPUB File Extension EPUB Ebook Backup
298 ORIGINAL_MOBI File Extension MOBI Ebook Backup
299 ORK File Extension Warhammer Mark Of Chaos Game Archive
300 ORL File Extension Object-Relational Language
301 ORMDESIGNER File Extension ORM Designer Project
302 ORS File Extension DSP Group TrueSpeech Audio Format
303 ORT File Extension COREX Orthographic Transcriptions Format
304 ORV File Extension Oracom Video Format
305 ORX File Extension RadiantOne VDS Database Schema
306 ORZ File Extension Holic Game
307 OS File Extension ObjectScript Source Format
308 OS2 File Extension Os2 System
309 OS3 File Extension OS/2 Warp 3
310 OSA File Extension W32/Sober-AD
311 OSAS File Extension Apple Script Library Tani Script
312 OSAX File Extension FindFile OSAX Mac Format Type
313 OSB File Extension OpenStreetMap Binary Map Format
314 OSBX File Extension OneSafe Exported Backup
315 OSC File Extension Remote Installation Services Client Installation Wizard Format
316 OSCD File Extension TouchOSC Interface Editor Template
317 OSD File Extension Open Software Description
318 OSDX File Extension Search Connector Description Format
319 OSF File Extension Descent 3 Sound
320 OSG File Extension OSGJS JSON Input
321 OSGB File Extension OpenSceneGraph Binary Scene Data Format
322 OSK File Extension Osu! Skin Format
323 OSL File Extension OckamSoft Log
324 OSM File Extension OpenStreetMap Map Format
325 OSN File Extension Open Symbolic Notation Data Format
326 OSP File Extension OpenShot Project Format
327 OSR File Extension Osu! Replay Format
328 OSS File Extension Microsoft Outlook Saved Search Format
329 OST File Extension Outlook Offline Folder Format
330 OSU File Extension Osu! Script
331 OSW File Extension ONESWING Contents
332 OSX File Extension PowerPC Executable Format
333 OSZ File Extension Osu! Beatmap Format
334 OT File Extension TheWord Old Testament Text Module
335 OTA File Extension OTA Bitmap Image
336 OTB File Extension Nokia Over The Air Bitmap Image
337 OTC File Extension OpenDocument Chart Template
338 OTD File Extension OpenIV Texture Data
339 OTF File Extension OpenType Font
340 OTG File Extension OpenDocument Graphic Template
341 OTH File Extension OpenDocument HTML Template
342 OTI File Extension OpenDocument Image Template
343 OTL File Extension NoteTab Outline Format
344 OTLN File Extension Opal Outline Format
345 OTM File Extension Outlook Macro Format
346 OTP File Extension OpenDocument Presentation Template
347 OTR File Extension IRIX Complied FTR
348 OTRKEY File Extension OnlineTvRecorder Encoded Video Format
349 OTS File Extension OpenDocument Spreadsheet Template
350 OTT File Extension OpenDocument Document Template
351 OTV File Extension Rotor-Disc OTV Kit OTV Calibration
352 OTX File Extension TheWord Encrypted Old Testament Text Module
353 OTZ File Extension OpenLP Theme Format
354 OUT File Extension Output Format
355 OUT1 File Extension UltraEdit Data Format
356 OUTJOB File Extension Altium Designer Data Format
357 OUTLINE File Extension FontTwister Letter Outline
358 OUTLOOK97 File Extension Microsoft Outlook Custom Mail
359 OUV File Extension Sphinx Open Ended Responses Format
360 OUX File Extension Bibexcel
361 OV File Extension OpenInsight Database Overflow
362 OV1 File Extension Overlay
363 OV2 File Extension TomTom Points Of Interest Database
364 OV3 File Extension Overlay
365 OV4 File Extension Overlay
366 OV5 File Extension Overlay
367 OVA File Extension Open Virtual Appliance
368 OVD File Extension ObjectVision Data
369 OVE File Extension Overture Musical Score
370 OVF File Extension Open Virtualization Format
371 OVG File Extension ObjectVision Converted Graphic
372 OVH File Extension OMSI Bus Settings
373 OVK File Extension Little Busters! Game Data Format
374 OVL File Extension Rollercoaster Tycoon 3 Data Format
375 OVLX File Extension E-Sword Overlay Data Format
376 OVOLOG File Extension OoVoo Log
377 OVP File Extension The Overlay Maker Package Format
378 OVPN File Extension OpenVPN Configuration Format
379 OVR File Extension The Overlay Maker Overlay Format
380 OVS File Extension Ovation 1 Style Sheet
381 OVT File Extension Orbit Vector Tiled Format
382 OVW File Extension Logic Pro Overview Format
383 OW File Extension Free Pascal 1.0.x Object Format
384 OWC File Extension OutWit Catch Database
385 OWG File Extension OutWit Gear Database
386 OWL File Extension OWL Source Code Format
387 OWM File Extension OutWit XML Mashup Format
388 OWR File Extension PeopleSoft Results Archive
389 OWS File Extension Web Studio Project
390 OWT File Extension Ancestry.com OneWorldTree
391 OX File Extension Ox Object-Oriented Matrix Programming Language
392 OXD File Extension PS3 Proxy Server
393 OXF File Extension IBM Rational Rhapsody
394 OXO File Extension Ox Object-Oriented Matrix Programming Language
395 OXPS File Extension OpenXPS Format
396 OXT File Extension Apache OpenOffice Extension
397 OXYGENE File Extension Oxygene Project Format
398 OYX File Extension Approach Alternate Database Index
399 OYZ File Extension Lotus Approach Alternate DBASE Index
400 OZ File Extension Opera Job Management Compressed Format
401 OZD File Extension Win32.TrojanDownloader.Agent.OZD Trojan Format
402 OZF2 File Extension OziExplorer Map
403 OZFX3 File Extension OziExplorer Image
404 OZJ File Extension Mu Online Graphic
405 OZP File Extension Orgadata LogiKal
406 OZT File Extension Mu Online Texture
Top File Extensions
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File Extension of the day
bak~ icon

BAK~

AbiWord Auto-Saved Document

File with a BAK~ extension is an element of group of files constituting a backup copy. The abbreviation stands for AbiWord Auto-Saved Document. It ...