| File Extension |
File Type |
File Description |
| .o |
Developer |
Compiled Object File |
| .obj |
Image |
3D Object |
| .obj |
Data |
Relocatable Object Code |
| .obs |
Executable |
ObjectScript Script |
| .ocr |
Text |
FAXGrapper Fax Text File |
| .ocx |
Developer |
ActiveX Control |
| .odb |
Data |
ABAQUS Database |
| .odc |
Image |
OpenDocument Chart |
| .odf |
Misc |
OpenDocument Formula |
| .odg |
Image |
OpenDocument Graphic |
| .odi |
Image |
OpenDocument Image |
| .odif |
Image |
Open Document Interchange Format |
| .odm |
Text |
OpenDocument Master Document |
| .odp |
Misc |
OpenDocument Presentation |
| .ods |
Misc |
Outlook Express Mailbox |
| .ods |
Data |
OpenDocument Spreadsheet |
| .odt |
Text |
OpenDocument Text Document |
| .oeb |
Backup |
Outlook Express Backup Wizard File |
| .off |
Image |
Object File Format |
| .oft |
Text |
Outlook File Template |
| .ogg |
Audio |
Ogg Vorbis Compressed Audio File |
| .olb |
Developer |
OLE Object Library |
| .old |
Backup |
Backup File |
| .omf |
Video |
Open Media Framework |
| .oo3 |
Data |
OmniOutliner 3 File |
| .opf |
Image |
FlipAlbum |
| .ops |
Misc |
Office Profile Settings File |
| .or4 |
Data |
Lotus Organizer 4 File |
| .orf |
Image |
Olympus RAW File |
| .org |
Data |
Lotus Organizer File |
| .ori |
Backup |
Original File |
| .otc |
Image |
OpenDocument Chart Template |
| .otf |
Font |
OpenType Font |
| .otf |
Misc |
OpenDocument Formula Template |
| .otg |
Image |
OpenDocument Graphic Template |
| .oth |
Web |
OpenDocument HTML Template |
| .oti |
Image |
OpenDocument Image Template |
| .otp |
Misc |
OpenDocument Presentation Template |
| .ots |
Data |
OpenDocument Spreadsheet Template |
| .ott |
Text |
OpenDocument Text Document Template |
