Computer "O" file extensions
Updated: 05/13/2019 by Computer Hope
Below is a listing of each of the different file extensions that begin with the letter "O." If you are looking for a file extension that starts with a different letter, click on the corresponding beginning letter below.
|.OBJ||Universal format for 3-D models, textures, materials, and associated data.|
|.OCA||Control typelib cache.|
|.OCX||OLE (Object Linking and Embedding) control extension.|
|.ODT||Document file created in LibreOffice and OpenOffice Writer word processor program.|
|.OGG||OGG Vorbis sound file.|
|.OGM||An Ogg Media File, OGM files are movie files.|
|.OLD||Used for backups of important files in case they are improperly updated or deleted.|
|.OLE||Object Linking and Embedding object file.|
|.OLI||Olivetti text file.|
|.ORF||Digital camera RAW file format.|
|.OTL||A Z-soft type foundry font file and other program files template file.|
|.OVA||Archive file containing files for virtualization software, like VMware Workstation.|
- What are the most common file types and file extensions?
- See our file and file extension definitions for further information and related links on these terms.