.O | Compiled Object File | 210 |
.OAB | Offline Address Book | 250 |
.OAM | Adobe Edge Animate Widget File | 214 |
.OAP | OutSystems Application Package | 400 |
.OAR | OpenSimulator Archive | 250 |
.OAT | Android Optimized Application File | 271 |
.OB! | Orbit Downloader Incomplete Download | 207 |
.OB2 | Oberon-2 Source Code File | 244 |
.OBB | Android Opaque Binary Blob File | 197 |
.OBD | Office Binder Document | 224 |
.OBF | OsmAnd Offline Map File | 275 |
.OBI | Outlook RSS Subscription File | 194 |
.OBJ | Wavefront 3D Object File | 213 |
.OBJ | Relocatable Object Code | 237 |
.OBK | Backup File | 250 |
.OBK | OrangeCD Backup File | 500 |
.OBML | Opera Mini Saved Webpage | 238 |
.OBML15 | Opera Mini Saved Webpage | 300 |
.OBML16 | Opera Mini Saved Webpage | 200 |
.OBP | Bryce Object File | 187 |
.OBT | Openbox Theme File | 167 |
.OBW | Superior Drummer Sounds File | 275 |
.OBZ | Compressed 3D Object File | 233 |
.OC3 | openCanvas 3 Event File | 267 |
.OC4 | openCanvas 4 Event File | 200 |
.OC5 | openCanvas 5 Event File | 300 |
.OCA | Custom Control Library Type File | 250 |
.OCC | Oceanic DataPool File | 300 |
.OCD | OCAD Map File | 260 |
.OCE | Open Catalog Extension Connection File | 367 |
.OCI | openCanvas Image | 280 |
.OCIMF | OCIMF HVPQ File | 400 |
.OCR | FAXGrapper Fax Text File | 467 |
.OCR | Subtitle Workshop OCR Script | 200 |
.OCT | Radiance Octree File | 350 |
.OCTEST | Xcode Objective-C Unit Test Bundle | 233 |
.OCX | ActiveX Control | 209 |
.OD | Mascopt Graph Request File | 267 |
.ODB | OpenDocument Database | 232 |
.ODB | ABAQUS Database | 287 |
.ODC | Office Data Connection File | 192 |
.ODC | OpenDocument Chart File | 350 |
.ODEX | Optimized Dalvik Executable | 252 |
.ODF | OpenDocument Formula | 235 |
.ODF | Open Document File | 350 |
.ODF | Battlezone Object Definition File | 300 |
.ODG | OpenDocument Graphic File | 256 |
.ODI | OpenDocument Image | 333 |
.ODIF | Open Document Interchange Format | 275 |
.ODIN | Locky Ransomware Encrypted File | 220 |
.ODL | Object Description Language File | 367 |
.ODM | OverDrive Media File | 243 |
.ODM | OpenDocument Master Document | 208 |
.ODO | Online Operating System Write Document | 320 |
.ODOC | Synology Office Document Pointer | 300 |
.ODP | OpenDocument Presentation | 242 |
.ODP | Organ Definition Project | 450 |
.ODS | OpenDocument Spreadsheet | 243 |
.ODS | Outlook Express 5 Mailbox | 254 |
.ODT | OpenDocument Text Document | 246 |
.ODT | OOMMF Data Table File | 282 |
.ODT | Origin Dialog Theme File | 333 |
.ODTTF | Obfuscated OpenType Font | 227 |
.ODX | BizTalk Server Orchestration File | 400 |
.OEACCOUNT | Windows Mail Account File | 250 |
.OEB | Outlook Express Backup Wizard File | 350 |
.OEB | Open eBook File | 300 |
.OEBZIP | Zipped Open eBook File | 400 |
.OEM | OEM Setup File | 250 |
.OEM | OEMEdit Save File | 350 |
.OESAVESTATE | OpenEmu Saved Game | 400 |
.OEX | Opera Extension | 205 |
.OFC | Open Financial Connectivity File | 233 |
.OFD | OfficeForms Document | 400 |
.OFF | Object File Format | 214 |
.OFFICEUI | Microsoft Office UI Customization File | 175 |
.OFL | Ots File List | 325 |
.OFM | Melco Embroidery File | 400 |
.OFM | OmniForm Form | 400 |
.OFP | Origin Function Plot Theme File | 264 |
.OFR | OptimFROG Audio File | 400 |
.OFR | SMS Offer Manager File | 300 |
.OFT | Outlook File Template | 253 |
.OFX | Open Financial Exchange File | 250 |
.OGA | Ogg Vorbis Audio File | 227 |
.OGF | S.T.A.L.K.E.R. Model File | 357 |
.OGG | Ogg Vorbis Audio File | 214 |
.OGG | Origin Graph File | 336 |
.OGGSTR | Godot Engine Ogg Audio File | 240 |
.OGGU | Origin Unicode Graph File | 200 |
.OGM | Ogg Media File | 289 |
.OGM | Origin Matrix File | 217 |
.OGMU | Origin Unicode Matrix File | 350 |
.OGNC | Dynamic Web Page | 300 |
.OGS | Origin LabTalk Script File | 250 |
.OGS | Origons Movie Data File | 500 |
.OGV | Ogg Video File | 247 |
.OGW | Origin Workbook File | 400 |
.OGWU | Origin Unicode Workbook File | 300 |
.OGX | Ogg Vorbis Multiplexed Media File | 273 |
.OGZ | Cube 2 Map File | 200 |
.OIF | Origin Import Filter File | 500 |
.OIS | Origin Analyses Theme File | 400 |
.OIV | OpenIV Mod Package File | 186 |
.OKT | Oktalyzer Module | 267 |
.OL | Valve Hammer Object Layout File | 242 |
.OLA | Online Access File | 162 |
.OLB | OLE Object Library | 223 |
.OLB | OrCAD Symbol Library File | 275 |
.OLD | Backup File | 235 |
.OLK | Outlook Address Book File | 175 |
.OLK14CATEGORY | Outlook Category File | 433 |
.OLK14CONTACT | Outlook Contact File | 400 |
.OLK14EVENT | Outlook Calendar Event File | 400 |
.OLK14GROUP | Outlook Group File | 400 |
.OLK14MAILACCOUNT | Outlook Mail Account File | 450 |
.OLK14MESSAGE | Outlook Message File | 260 |
.OLK14MSGATTACH | Outlook 2011 Email Message Attachment File | 400 |
.OLK14MSGSOURCE | Outlook Email Message Data File | 233 |
.OLK14NOTE | Outlook Note File | 400 |
.OLK14PREF | Outlook Preferences File | 400 |
.OLK14SIGNATURE | Outlook Signature File | 300 |
.OLK14TASK | Outlook Task File | 500 |
.OLK15MSGATTACH | Outlook 2016 Email Message Attachment File | 400 |
.OLL | TrialDirector Object Load List | 300 |
.OLM | Mac Outlook Database File | 162 |
.OLP | Office Live Package | 250 |
.OLT | Orbit Downloads List | 350 |
.OMA | Sony OpenMG Music File | 237 |
.OMCS | Office Manager Access File | 250 |
.OMF | Open Media Framework File | 212 |
.OMF | OMF Interchange Image File | 375 |
.OMG | Image File | 238 |
.OMG | OpenMG Audio File | 200 |
.OML | OutSystems Modeling Language File | 400 |
.OMO | OMake Object File | 225 |
.OMOD | Oblivion Mod Archive | 300 |
.OMP | Office Manager Document Archive | 300 |
.OMP | OpenMind Windows Document | 300 |
.OMS | HP Printer Substrate Presets Package File | 300 |
.OMX | OtsAV Media Library Information File | 225 |
.OND | Lotus Notes Encapsulated Memo File | 383 |
.ONE | OneNote Document | 251 |
.ONEPKG | Microsoft OneNote Package File | 220 |
.ONETOC | Microsoft OneNote Table of Contents File | 500 |
.ONETOC2 | Microsoft OneNote Table of Contents File | 208 |
.ONT | theWord Bible Text Module | 250 |
.ONTX | theWord Encrypted Bible Text Module | 200 |
.OO3 | OmniOutliner 3 File | 225 |
.OO3TEMPLATE | OmniOutliner Template | 350 |
.OOK | Arachne Batch Script | 340 |
.OP | OpenPAT Report | 287 |
.OP2 | Nastran Output File | 300 |
.OP4 | Nastran Output File | 250 |
.OPAL | Microsoft Office User Settings File | 317 |
.OPAX | Microsoft Office User Settings File | 333 |
.OPD | OmniPage Document | 254 |
.OPD | Durango Document | 450 |
.OPDOWNLOAD | Opera Partially Downloaded File | 188 |
.OPEICO | Opeico Text File | 240 |
.OPENBSD | OpenBSD Readme File | 360 |
.OPF | Open Packaging Format File | 264 |
.OPF | FlipAlbum File | 227 |
.OPF | FlipViewer FlipBook File | 236 |
.OPJ | OrCAD Project File | 270 |
.OPJ | Origin Project | 256 |
.OPJU | Origin Unicode Project | 210 |
.OPK | GCW Zero Open Package | 214 |
.OPLC | Nokia Operator Logo File | 300 |
.OPML | Outline Processor Markup Language File | 246 |
.OPS | Office Profile Settings File | 240 |
.OPT | Options File | 223 |
.OPT | Opterecenja File | 156 |
.OPT | AGT Game Data File | 325 |
.OPTIONS | SE-SOFT Configuration File | 267 |
.OPTS | Linux Configuration Options File | 300 |
.OPUS | Opus Audio File | 240 |
.OPX | OrgPlus Org Chart | 225 |
.OPX | FlipAlbum Photo Album File | 367 |
.OQY | Microsoft Excel OLAP Query | 220 |
.OR2 | Lotus Organizer 2 File | 500 |
.OR3 | IBM Lotus Organizer 97 File | 467 |
.OR4 | IBM Lotus Organizer 97 GS File | 350 |
.OR5 | Lotus Organizer 5 File | 350 |
.OR6 | Lotus Organizer 6 File | 300 |
.ORA | Oracle Database Configuration File | 275 |
.ORA | OpenRaster Image File | 314 |
.ORB | Original eBook Reader File | 300 |
.ORC | Voyetra Digital Orchestrator File | 500 |
.ORDEREDTEST | Visual Studio Ordered Test File | 300 |
.ORE | Ore Executable File | 420 |
.ORF | Olympus RAW File | 238 |
.ORG | Lotus Organizer File | 259 |
.ORG | Organya Music File | 271 |
.ORG | Emacs Org Text Document | 350 |
.ORI | Original File | 336 |
.ORIG | Original File | 218 |
.ORT | Rich Text Editor Document | 333 |
.ORV | Oracom Video File | 300 |
.ORX | RadiantOne VDS Database Schema | 250 |
.OS | ObjectScript Source File | 285 |
.OSAX | AppleScript Scripting Addition | 300 |
.OSB | OpenStreetMap Binary Map File | 350 |
.OSB | Osu! Storyboard File | 212 |
.OSC | OpenStreetMap Change File | 229 |
.OSC | Obix Source Code File | 450 |
.OSDX | Search Connector Description File | 200 |
.OSK | osu! Skin File | 161 |
.OSM | OpenStreetMap Map File | 220 |
.OSP | OpenShot Project File | 268 |
.OSR | osu! Replay File | 179 |
.OSS | Microsoft Outlook Saved Search File | 167 |
.OST | Outlook Offline Data File | 256 |
.OSU | Osu! Script | 224 |
.OSX | PowerPC Executable File | 264 |
.OSZ | osu! Beatmap File | 154 |
.OSZ | OpenLP Service File | 347 |
.OT | theWord Old Testament Text Module | 400 |
.OTA | OTA Bitmap Image | 200 |
.OTA | OTA Ringtone File | 400 |
.OTB | Nokia Over The Air Bitmap Image | 250 |
.OTC | OpenDocument Chart Template | 450 |
.OTF | OpenType Font | 221 |
.OTF | OpenDocument Formula Template | 342 |
.OTF | OpenTuft Tufting Design File | 344 |
.OTG | OpenDocument Graphic Template | 233 |
.OTH | OpenDocument HTML Template | 275 |
.OTH | Origin Graph Theme File | 500 |
.OTI | OpenDocument Image Template | 267 |
.OTL | NoteTab Outline File | 300 |
.OTLN | Opal Outline File | 150 |
.OTM | Outlook Macro File | 250 |
.OTM | Origin Matrix Template | 287 |
.OTMU | Origin Unicode Matrix Template | 250 |
.OTP | OpenDocument Presentation Template | 256 |
.OTP | Origin Graph Template | 189 |
.OTPU | Origin Unicode Graph Template | 300 |
.OTRKEY | OnlineTvRecorder Encoded Video File | 300 |
.OTS | OpenDocument Spreadsheet Template | 250 |
.OTS | OtsAV Album File | 300 |
.OTT | OpenDocument Document Template | 211 |
.OTW | Origin Workbook Template | 250 |
.OTWU | Origin Unicode Workbook Template | 400 |
.OTX | theWord Encrypted Old Testament Text Module | 433 |
.OTZ | OpenLP Theme File | 267 |
.OUT | Output File | 262 |
.OUT | Compiled Executable File | 215 |
.OV2 | TomTom Points of Interest Database | 356 |
.OVA | Open Virtual Appliance | 218 |
.OVA | Octava Musical Score | 292 |
.OVE | Overture Musical Score | 325 |
.OVF | Open Virtualization File | 233 |
.OVH | OMSI Vehicle Configuration File | 275 |
.OVL | Rollercoaster Tycoon 3 Data File | 250 |
.OVOLOG | ooVoo Log File | 225 |
.OVP | The Overlay Maker Package File | 333 |
.OVPN | OpenVPN Configuration File | 194 |
.OVR | The Overlay Maker Overlay File | 314 |
.OVW | Logic Pro Overview File | 200 |
.OVW | Cubase WAVE Overview File | 333 |
.OVX | Object-based Visual Application Language File | 500 |
.OW | Free Pascal 1.0.x Object File | 300 |
.OWC | OutWit Catch Database | 400 |
.OWG | OutWit Gear Database | 400 |
.OWL | OWL Source Code File | 275 |
.OWM | OutWit XML Mashup File | 233 |
.OWX | OutWit Hub Automator File | 375 |
.OXPS | OpenXPS File | 242 |
.OXT | Apache OpenOffice Extension | 283 |
.OXYGENE | Oxygene Project File | 250 |
.OYX | Approach Alternate Database Index | 350 |
.OZ | Opera Job Management Compressed File | 250 |
.OZB | MU Online Image File | 300 |
.OZJ | MU Online Image File | 218 |
.OZT | MU Online Image File | 222 |