 
 
 Typhoon Voice
  MS Outlook
 OAZ Fax
  IMB LinkWay
 MS Office Binder
 MS Out Of Box Experience
 Hex
 ;   Macroassembler   Microsoft C;  Hex;  Lightwave
 Hex
  Oberon-2
Borland C++ Object Browser Data
 ObjectScript
  ObjectScript
 MS Office Binder
 Control Typelib
 Object Craft
  FAXGrapper
    
  Omnis5(  .OD2, .OD3  ..)
  ABAQUS
 OpenDocument
 MS Office Object Data Embedding
 Open Document Interchange;  BattleZone Cartographers Guild
 OpenDocument
 OpenDocument
 Open Document Interchange Format ()
  Visual C++
 OpenDocument Master Document
 OpenDocument
  MS Outlook Express
  OpenDocument
      MS Outlook Express
 Open Financial Connectivity File
  ObjectView
  (  );    3D Mesh
 Adobe
 MS Office
 MS Outlook
 Open Financial Exchange
 wav  Ogg Vorbis Codec;  Origin
 OGG ()
 Origin
 web-   QuickBase
 Dialogic VOX ADPCM
 Oktalyzer Tracker
  
 
  ( )
 OLE
  Olivetti
 
 Omake
 Lotus Notes
 Onyx Graphics Postershop
 OmniOutliner 3
 Shroom Swap
  Outpost 2
 Beta 44 Job
 Flip
 OrCad;  Origin
    Psion Organiser
 OPML (    RSS)
 Exact Active Options
   OPL
   Office
 QEMM; ;    Autodesk Animator Pro;  MS Developer Studio File
  MS Orgchart;  Exact Inactive Options;  OPL  DLL
  MS Excel OLAP
 Lotus Organiser 2 File
 Lotus Organiser 97 File
 Lotus Organiser 4
 Oracle 7
 MIDI File;  Oracle 7
RAW- Olympus
 Lotus Organiser File;  Origin File
 
  Remote Installation Services Client Installation
   MS Office
  MS Exchange/Outlook
 OTA
   Nokia
  OpenDocument
  Open Type;  OpenDocument
  OpenDocument
 HTML OpenDocument
  OpenDocument
 Super NoteTab;  Z-Soft Type Foundry
  Opal
 Origin;   OpenDocument
  OtsJuke;    OpenDocument
   OpenDocument
 Olivetti Olitext Plus File
  ( );   ZX Spectrum
  
  
  
 Sierra Web Studio Graphic
  ObjectVision
 Cakewalk Overture
  
  
 Cubase WAVE
  Approach Alternate
  Sharp Organizer
  Sharp Organizer