alphabetical list of extensions

Browse alphabetically - O

File extension The full name of the file Popularity
File extension O Compiled Object File StarStarStar
File extension OAB Offline Address Book StarStarStar
File extension OAM Adobe Edge Animate Widget File StarStarStar
File extension OAR OpenSimulator Archive StarStar
File extension OB! Orbit Downloader Incomplete Download StarStarStar
File extension OBB Android Opaque Binary Blob File StarStarStar
File extension OBD Office Binder Document StarStarStar
File extension OBI Outlook RSS Subscription File StarStarStarStar
File extension OBJ Wavefront 3D Object File StarStarStarStarStar
File extension OBML Opera Mini Saved Web Page StarStarStar
File extension OBP Bryce Object File StarStar
File extension OBT Openbox Theme File StarStar
File extension OBW Superior Drummer Sounds File StarStarStar
File extension OBZ Compressed 3D Object File StarStar
File extension OC3 openCanvas 3 Event File StarStarStar
File extension OC4 openCanvas 4 Event File StarStarStar
File extension OC5 openCanvas 5 Event File StarStarStar
File extension OCA Custom Control Library Type File StarStarStar
File extension OCC Oceanic DataPool File StarStar
File extension OCD OCAD Map File StarStarStar
File extension OCE Open Catalog Extension Connection File StarStar
File extension OCI openCanvas Image StarStarStar
File extension OCR FAXGrapper Fax Text File StarStar
File extension OCT Radiance Octree File StarStarStar
File extension OCTEST Xcode Objective-C Unit Test Bundle StarStarStar
File extension OCX ActiveX Control StarStarStarStar
File extension OD Mascopt Graph Request File Star
File extension ODB OpenDocument Database StarStarStar
File extension ODC Office Data Connection File StarStarStar
File extension ODF OpenDocument Formula StarStarStar
File extension ODG OpenDocument Graphic File StarStarStar
File extension ODI OpenDocument Image StarStar
File extension ODIF Open Document Interchange Format Star
File extension ODL Object Description Language File StarStarStar
File extension ODM OverDrive Media File StarStarStar
File extension ODO Online Operating System Write Document Star
File extension ODP OpenDocument Presentation StarStarStarStar
File extension ODS OpenDocument Spreadsheet StarStarStarStar
File extension ODT OpenDocument Text Document StarStarStarStarStar
File extension ODX BizTalk Server Orchestration File StarStarStar
File extension OEACCOUNT Windows Mail Account File StarStarStarStar
File extension OEB Outlook Express Backup Wizard File StarStarStar
File extension OEM OEM Setup File StarStarStar
File extension OEX Opera Extension StarStar
File extension OFC Open Financial Connectivity File StarStarStar
File extension OFF Object File Format StarStarStar
File extension OFL Ots File List StarStarStar
File extension OFM Melco Embroidery File StarStarStar
File extension OFR OptimFROG Audio File StarStar
File extension OFT Outlook File Template StarStarStar
File extension OFX Open Financial Exchange File StarStarStarStar
File extension OGA Ogg Vorbis Audio File StarStarStar
File extension OGF S.T.A.L.K.E.R. Model File StarStarStar
File extension OGG Ogg Vorbis Audio File StarStarStarStar
File extension OGM Ogg Media File StarStarStar
File extension OGNC Dynamic Web Page StarStarStar
File extension OGS Origons Movie Data File Star
File extension OGV Ogg Video File StarStarStarStar
File extension OGX Ogg Vorbis Multiplexed Media File StarStarStar
File extension OGZ Cube 2 Map File StarStar
File extension OKT Oktalyzer Module StarStarStar
File extension OLA Online Access File StarStarStar
File extension OLB OLE Object Library StarStarStar
File extension OLD Backup File StarStarStarStar
File extension OLK Outlook Address Book File StarStar
File extension OLK14CATEGORY Outlook Category File StarStar
File extension OLK14CONTACT Outlook Contact File StarStar
File extension OLK14EVENT Outlook Calendar Event File StarStar
File extension OLK14GROUP Outlook Group File StarStar
File extension OLK14MAILACCOUNT Outlook Mail Account File StarStar
File extension OLK14MESSAGE Outlook Message File StarStarStar
File extension OLK14MSGSOURCE Outlook Email Message Data File StarStar
File extension OLK14NOTE Outlook Note File StarStar
File extension OLK14PREF Outlook Preferences File Star
File extension OLK14SIGNATURE Outlook Signature File StarStar
File extension OLK14TASK Outlook Task File Star
File extension OLM Mac Outlook Database File StarStarStar
File extension OLT Orbit Downloads List StarStar
File extension OMA Sony OpenMG Music File StarStarStar
File extension OMCS Office Manager Access File StarStar
File extension OMF Open Media Framework File StarStarStarStar
File extension OMG O&O DiskImage backup file StarStarStar
File extension OMO OMake Object File StarStarStar
File extension OMOD Oblivion Mod Archive StarStarStar
File extension OMP Office Manager Document Archive StarStarStar
File extension OMX OtsAV Media Library Information File StarStarStar
File extension OND Lotus Notes Encapsulated Memo File StarStarStar
File extension ONE OneNote Document StarStarStar
File extension ONEPKG Microsoft OneNote Package File StarStarStar
File extension ONETOC2 Microsoft OneNote Table of Contents File StarStarStar
File extension ONT theWord Bible Text Module StarStarStar
File extension ONTX theWord Encrypted Bible Text Module StarStarStar
File extension OO3 OmniOutliner 3 File StarStarStar
File extension OOK Arachne Batch Script Star
File extension OPD Durango Interferometry Software document file StarStarStar
File extension OPDOWNLOAD Opera Partially Downloaded File StarStarStarStar
File extension OPENBSD OpenBSD Readme File Star
File extension OPF Open Packaging Format File StarStarStar
File extension OPJ OrCAD Project File StarStarStar
File extension OPLC Nokia Operator Logo File StarStarStar
File extension OPML Outline Processor Markup Language File StarStarStarStar
File extension OPS Office Profile Settings File StarStarStar
File extension OPT MySQL database data file StarStarStar
File extension OPTIONS SE-SOFT Configuration File Star
File extension OPTS Linux Configuration Options File StarStar
File extension OPUS Opus Audio File StarStar
File extension OPX OrgPlus Org Chart StarStarStar
File extension OQY Excel OLAP Query File StarStarStar
File extension OR2 Lotus Organizer 2 File Star
File extension OR3 IBM Lotus Organizer 97 File Star
File extension OR4 IBM Lotus Organizer 97 GS File StarStar
File extension OR5 Lotus Organizer 5 File StarStar
File extension OR6 Lotus Organizer 6 File StarStarStar
File extension ORA Oracle Database Configuration File StarStarStarStar
File extension ORC CSound orchestra midi file Star
File extension ORDEREDTEST Visual Studio Ordered Test File StarStar
File extension ORE Ore Executable File Star
File extension ORF Olympus RAW File StarStarStar
File extension ORG Lotus Organizer File StarStar
File extension ORI Original File StarStarStar
File extension ORIG Original File StarStarStarStar
File extension ORT COREX orthographic transcriptions file StarStar
File extension ORV Oracom Video File Star
File extension ORX RadiantOne VDS Database Schema StarStar
File extension OS ObjectScript Source File StarStar
File extension OSAX FindFile OSAX mac file type StarStar
File extension OSB OpenStreetMap Binary Map File StarStar
File extension OSC Remote Installation Services client installation wizard file StarStarStar
File extension OSDX Search Connector Description File StarStarStarStar
File extension OSK Osu! Skin File StarStarStar
File extension OSM OpenStreetMap Map File StarStarStarStar
File extension OSP OpenShot Project File StarStar
File extension OSR Osu! Replay File StarStarStar
File extension OSS Microsoft Outlook Saved Search File StarStarStar
File extension OST Outlook Offline Folder File StarStarStar
File extension OSU Osu! Script StarStar
File extension OSX PowerPC Executable File Star
File extension OSZ Osu! Beatmap File StarStarStarStar
File extension OT theWord Old Testament Text Module StarStarStar
File extension OTA OTA Bitmap Image StarStarStar
File extension OTB Nokia Over The Air Bitmap Image StarStar
File extension OTC OpenDocument Chart Template StarStar
File extension OTF OpenType Font StarStarStarStarStar
File extension OTG OpenDocument Graphic Template StarStar
File extension OTH OpenDocument HTML Template StarStarStar
File extension OTI OpenDocument Image Template StarStar
File extension OTL NoteTab Outline File StarStarStar
File extension OTLN Opal Outline File StarStarStar
File extension OTM Outlook Macro File StarStarStar
File extension OTP OpenDocument Presentation Template StarStarStar
File extension OTRKEY OnlineTvRecorder Encoded Video File StarStarStarStar
File extension OTS OpenDocument Spreadsheet Template StarStarStar
File extension OTT OpenDocument Document Template StarStarStar
File extension OTX theWord Encrypted Old Testament Text Module StarStarStar
File extension OTZ OpenLP Theme File StarStar
File extension OUT Output File StarStarStarStar
File extension OV2 TomTom Points of Interest Database StarStarStarStar
File extension OVA Open Virtual Appliance StarStarStar
File extension OVE Overture Musical Score StarStarStar
File extension OVF Open Virtualization File StarStarStarStar
File extension OVL Rollercoaster Tycoon 3 Data File StarStar
File extension OVP The Overlay Maker Package File StarStar
File extension OVPN OpenVPN Configuration File StarStarStar
File extension OVR The Overlay Maker Overlay File StarStar
File extension OVW Logic Pro Overview File StarStarStar
File extension OW Free Pascal 1.0.x Object File Star
File extension OWC OutWit Catch Database StarStar
File extension OWG OutWit Gear Database StarStar
File extension OWL OWL Source Code File StarStarStar
File extension OWM OutWit XML Mashup File StarStar
File extension OXPS OpenXPS File StarStar
File extension OXT Apache OpenOffice Extension StarStarStar
File extension OXYGENE Oxygene Project File StarStar
File extension OYX Approach Alternate Database Index StarStarStar
File extension OZ Opera Job Management Compressed File StarStar