O2C-AMglossar-images-file
O2C-Objects-to-See-3D-File-Format-mb-Software-AG
O3DTGZ-O3D-TGZ-GZipped-File
O3-Ozone-Messenger-Program-Support-Files-htmlland-net
O7-3-Mac-File-Type
O8O-Mediator5-Repositorytabs-Vorlagen-006-file
OAB-Microsoft-Outlook-address-book-file
OAB-Offline-Address-Book
OAD-Unknown-file-extension
OAF-ETH-Oberon-Applet-File
OAF-Flight-Simulator-Texture-File-Microsoft-Corporation
OAF-Outrage-Animation-Rows
OARC-Optix-Archive-Bundle-mindwrap-inc
OAS-Word-processor-document-Fujitsu-OAS-Japanese
OAW-openArchitectureWare-workflow-file
OAZ-Fax-NetFax-Manager
OB1-OzWin-CompuServe-E-mail-Forum-Access-Saved-Outbox-File
OB3-ORTIM-Zeit-Data-ORTIM-Industrial-Engineering-Deutschland-GmbH
OB3-Outlook-Backup-Full-Backup-File-ABF-software-Inc
OB-ABF-Outlook-Backup-file
OBAK-WinSQL-offline-backup-file
OBA-Timespace-X100-Digital-Video-Recorder-Video-File-Timespace-Technology-Ltd
OB-Compressed-OBJ-Microsoft-Corporation
OBD-Binder-Microsoft-Office
OBD-Binder-template-Microsoft-Office
OBI-Microsoft-Outlook-2007-RSS-subscription-file
OBI-Outlook-RSS-Subscription-File
OBJF-Data-Triangle-strips-object
OBJ-Object-file
OBK-Genie-Outlook-backup-file
OBK-OrCAD-Capture-Design-Library
OBK-Oxygen-Phone-Manager-phone-book
OBK-UbiSoft-ChessMaster-opening-book-file
OB-Microsoft-compressed-object
OBML-Opera-Mini-Saved-Web-Page-Opera-Software-ASA
OBN-Oberon-2-Module-Source-File
OB-Orbit-Downloader-Incomplete-Download
OB-Orbit-Downloader-Incomplete-Download-OrbitDownloader-com
OBPACK-ObjectBar-Object-Package-Stardock-Corporation-Inc
OBPACK-ObjectBar-theme-Header
OBP-Bryce-5-Object-Preset-DAZ-Productions
OBR-Object-browser-data-file-Borland-C
OBSKIN-ObjectBar-Skin-File-Stardock-Corporation-Inc
OBS-Script-ObjectScript
OBTHEME-ObjectBar-Theme-File-Stardock-Corporation-Inc
OBT-Microsoft-Office-Binder-Template-MSOffice
OBT-MS-Office-Binder-Template
OBV-Visual-interface-ObjectScript
OBX-OpenBook-document-file
OBX-Rational-XDE-IBM
TechTarget file types