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OBD Microsoft Office binder template

OBD Microsoft Office Binder

OBJ Object file

OBZ Microsoft Office Binder Wizard

OCX Microsoft Object Linking and Embedding custom control

OFN Microsoft Office FileNew file

OFT Microsoft Outlook template

OKT Oktalyzer music module (MOD) file

OLB OLE Object Library

OLE OLE object

OPT Microsoft Developer Studio file

ORG Lotus Organiser file

OR2 Lotus Organiser 2 file

OR3 Lotus Organiser 97 file

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