File Extensions Abbreviations and Acronyms

1. NZB
   Newzbin
2. NZB
   Newzbin Usenet Index File
3. OAB
   Offline Address Book
4. OAI
   Outlook Add-In
5. OAM
   Adobe Edge Animate Widget File
6. OAR
   Opensimulator Archive
7. OAZ
   Fax (NetFax Manager)
8. OB
   Object cut/paste file (IBM LinkWay)
9. OB
   Orbit Downloader Incomplete Download
10. OBB
    Android Opaque Binary Blob File
11. OBD
    Binder (MS Binder)
12. OBD
    Office Binder Document
13. OBI
    Outlook Rss Subscription File
14. OBJ
    Relocatable Object Code
15. OBJ
    Wavefront 3d Object File
16. OBK
    Backup File
17. OBML
    Opera Mini Saved Web Page
18. OBP
    Bryce Object File
19. OBR
    Object browser data file (Borland C )
20. OBS
    Script (ObjectScript)

Last updated: March 20, 2022 — Total entries: 12,444