Browse file extensions
with the first letter of the file name suffix: o  page 2

Just click below the file extension you are looking for and you will find programs that can be used to open it.

List of file extension entries starting with the letter o (page 2)

  • .odcodc ODCODC ransomware affected file
  • .odctablecollectionfile Microsoft Office component
  • .odctablefile Microsoft Office data
  • .odd Coby voice recorder format
  • .ode Microsoft Office data
  • .odex Google Android optimized executable
  • .odf Open Document Interchange Format (ODIF)
  • .odg Drawing in OpenDocument format
  • .odh Microsoft Visual Studio Interface Definition Language data
  • .odi Apache OpenOffice (OpenOffice.org) image
  • .odif Open Document Interchange Format file
  • .odin Locky ransomware affected file
  • .odl Visual C++ ODL type library source
  • .odm OpenOffice.org OpenDocument global text document
  • .odn Fluke Power Analyze database
  • .odo iCUBE Online Operating System Write document file
  • .odp OpenOffice.org OpenDocument presentation
  • .odr HMI Builder report file
  • .ods Calc spreadsheet
  • .odt OpenDocument text file
  • .odt# OpenOffice.org locked document
  • .odtpc Oracle User Productivity Kit presentation
  • .odttf Microsoft Office document embedded font
  • .odu Odigo Messenger user data
  • .odv Ocean Data View data
  • .odx Microsoft BizTalk Server diagram
  • .odz IBM OpenDoc Editor package
  • .oeaccount Windows Mail account settings
  • .oeb Open eBook format
  • .oecl Open EDA Component Library
  • .oef IBM Optim export file
  • .oem OEM install data
  • .oemigaccount Outlook Express temporary data
  • .oer AU OER TOOLS project
  • .oet eSignal order entry ticket
  • .oetpl Offline Explorer file
  • .oex Opera add-on
  • .ofa Kodak OfotoNow data
  • .ofb Oxygen Forensic Suite backup
  • .ofc Open Financial Connectivity file format
  • .ofd ObjectView form definition data
  • .off DEC 3D Object File Format
  • .officeui Microsoft Office UI customization
  • .offsets Offset data
  • .ofl OtsTurntables playlist
  • .ofm Embroidery designs
  • .ofn Microsoft Office File New (Other Office Documents)
  • .ofp Objecteering file
  • .ofr OptimFROG encoded audio
  • .ofs OptimFROG dualstream data
  • .oft Template file for Microsoft Outlook
  • .ofx Open Financial Exchange data file
  • .og Atari Jaguar GPU (TOM) object code
  • .oga Ogg Vorbis audio
  • .ogc Organica document file format
  • .ogd Oracle Forms graph
  • .ogex Open Game Engine Exchange data
  • .ogf OnkoS graphic file
  • .ogf2 MapViewGPS map coordinates
  • .ogg Ogg Vorbis format
  • .ogl ATI overlay source code
  • .ogm Ogg Vorbis media
  • .ognc Dynamic web page
  • .ogo Origin graphic object
  • .ogr OGR C++ open source library
  • .ogre OGRE 3D data
  • .ogs Origin script
  • .ogv Ogg Vorbis video
  • .ogw OriginLab worksheet
  • .ogx Microsoft C++ component gallery exported classes and resources
  • .ogz Cube 2 Sauerbraten map
  • .oh DrillAssistant list
  • .oh4 Overhoor list data
  • .ohi Openhelp data
  • .ohp MS-DOS 7 file
  • .ohs Bink outbound history data
  • .oht Oracle Help for Java links data
  • .ohw DrillAssistant list
  • .oib RAW image from Olympus microscope
  • .oid HP ProCurve Manager network device file
  • .oif QuickBase web-sharable database interchange data
  • .oil Open Image Library Format image format
  • .oir RAW image from Olympus microscope
  • .oit SleepScan and Ceegraph offset index
  • .oiv OpenIV mod archive
  • .oj Atari Jaguar DSP (JERRY) object module
  • .ojp 3WayPack data
  • .ojz OcĂ© Publisher compressed job
  • .ok QEDIT data
  • .okd Lenovo OneKey Recovery data
  • .okf OKF font file format
  • .okm Open Knowledge Management script
  • .okozo Okozo Desktop animation data
  • .okr PowerRecover one key recovery file
  • .oks OKScript script
  • .okt Oktalyzer music module (MOD)
  • .okx OKScript data
  • .ol Valve Hammer object layout
  • .olb Microsoft Office OLE Object Library
  • .old Backup archive

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.old" has the file extension "old". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.