| .001 | Smith Micro Software | Sikkerhedskopifiler | Split Archive File | Symantec Ghost Solution Suite | Symantec Corporation |
| .AEX | Adobe Systems Incorporated | Plug-in-filer | After Effects Plug-in | Pretty Good Privacy (PGP) | Symantec Corporation |
| .ARC | Symantec Corporation | Sikkerhedskopifiler | Norton Backup Archive | Symantec Norton 360 Version 6.0 | Symantec Corporation |
| .ARU | Symantec Corporation | Ikke Almindelige Filer | Autorun.aru Malicious Data | Norton Antivirus | Symantec Corporation |
| .ASC | Symantec Corporation | Kodet filer | PGP (Pretty Good Privacy) ASCII Armored File | PGP Desktop | Symantec Corporation |
| .BEX | Symantec Corporation | Datafiler | PGP Binary Extracted Public Key | Pretty Good Privacy (PGP) | Symantec Corporation |
| .BHD | Symantec Corporation | Datafiler | Backup Exec Deduplication Storage | Backup Exec | Symantec Corporation |
| .BJG | Symantec Corporation | Datafiler | DESQview File | DESQview | Symantec Corporation |
| .BMW | Buzz Tools | Lydfiler | BuzzPlay Music With Waves | Norton Security | Symantec Corporation |
| .BPS | Symantec Corporation | Ikke Almindelige Filer | BPS Programs Virus File | Norton Security | Symantec Corporation |
| .CFU | Symantec Corporation | Datafiler | Symantec Client Firewall Policy Data | Client Firewall | Symantec Corporation |
| .CIF | Corel | Disk billedfiler | Easy CD Creator Disk Image | pcAnywhere | Symantec Corporation |
| .CIK | Corel | Indstillingsfiler | Corel Graphics 10 Custom Dual Tone File | Norton Cleansweep | Symantec Corporation |
| .CIL | Symantec Corporation | Datafiler | Norton CleanSweep Installation Log File | Norton Cleansweep | Symantec Corporation |
| .DKS | Symantec Corporation | Indstillingsfiler | DataKeeper Configuration File | DataKeeper | Symantec Corporation |
| .DLB | Symantec Corporation | Ikke Almindelige Filer | Troj/Dloadr-AHT Data | Norton Antivirus | Symantec Corporation |
| .DWM | Open Source | CAD-filer | Digital Works Circuit Project | DESQview | Symantec Corporation |
| .EX | Symantec Corporation | Indstillingsfiler | Norton Ghost Template Data | Symantec Ghost Solution Suite | Symantec Corporation |
| .EXT | Symantec Corporation | Plug-in-filer | Norton Commander Extension | Norton Commander | Symantec Corporation |
| .EZT | EZTitles Development Studio | Videofiler | EZTitles Subtitles File | Norton Security | Symantec Corporation |
| .FH | Adobe Systems Incorporated | Vektorbilledfiler | Adobe FreeHand Image | Backup Exec | Symantec Corporation |
| .FJL | Symantec Corporation | Datafiler | Rootkit.Win32.Agent.fjl Virus File | Norton Security | Symantec Corporation |
| .FXM | pmG Worldwide | 3D-billedfiler | MessiahStudio Motion File | Symantec miniview.exe | Symantec Corporation |
| .GHO | Symantec Corporation | Sikkerhedskopifiler | Norton Ghost Backup File | Symantec Ghost Solution Suite | Symantec Corporation |
| .GHS | Symantec Corporation | Sikkerhedskopifiler | Norton Ghost Image Segment Backup File | Symantec Ghost Solution Suite | Symantec Corporation |
| .GHT | Symantec Corporation | Datafiler | Norton Ghost Project | Norton Ghost | Symantec Corporation |
| .HCT | Symantec Corporation | Datafiler | Symantec LiveUpdate Data | Norton Security | Symantec Corporation |
| .HDL | Matthew Bender | Datafiler | HotDocs Library File | Procomm Plus | Symantec Corporation |
| .HST | Yahoo! | Datafiler | History File | Symantec Client Security | Symantec Corporation |
| .IAD | Symantec Corporation | Datafiler | Symantec Patch Management Data | Symantec Patch Management | Symantec Corporation |
| .IIL | Symantec Corporation | Datafiler | Norton CleanSweep Installation Log File | Norton Cleansweep | Symantec Corporation |
| .IV21 | Symantec Corporation | Sikkerhedskopifiler | Norton Ghost Incremental Virtual Volume Image | Symantec Ghost Solution Suite | Symantec Corporation |
| .IV2I | Symantec Corporation | Sikkerhedskopifiler | Norton Ghost Incremental Virtual Volume Image | Symantec Ghost Solution Suite | Symantec Corporation |
| .IVA | Unknown Developer | Videofiler | Surveillance Video File | Norton Antivirus | Symantec Corporation |
| .JBD | Symantec Corporation | Datafiler | Norton Antivirus Definiton Update File Format | Norton Security | Symantec Corporation |
| .JDB | Symantec Corporation | Datafiler | Symantec Endpoint Protection Update File | Symantec EndPoint Protection 12 | Symantec Corporation |
| .KCD | Symantec Corporation | Datafiler | Rshiphop.kcd Malware | Norton Security | Symantec Corporation |
| .LCS | Swiftpage, Inc. | Datafiler | ACT! History Data | L0phtCrack | Symantec Corporation |
| .LET | Genesis 2000, Inc | Datafiler | Genesis 2000 Data | Norton Antivirus | Symantec Corporation |
| .LIK | Symantec Corporation | Ikke Almindelige Filer | Trojan.Win32.Agent.Lik Data | Norton Antivirus | Symantec Corporation |
| .LIVEREG | Symantec Corporation | Datafiler | Symantec Antivirus Session File | Symantec LiveReg | Symantec Corporation |
| .LIVEUPDATE | Symantec Corporation | Datafiler | Symantec LiveUpdate File | Norton SystemWorks | Symantec Corporation |
| .N1 | Symantec Corporation | Datafiler | Nuke Randomic Life Generator File | Norton Antivirus | Symantec Corporation |
| .NG | Symantec Corporation | Datafiler | Norton Guide Online Documentation Database | Norton Desktop | Symantec Corporation |
| .NIL | Symantec Corporation | Grafiske Filer | Norton Icon Library Icon Set | Norton Utilities | Symantec Corporation |
| .NLS | Uri Wilensky | Udviklerfiler | NetLogo Source Code File | Norton Security | Symantec Corporation |
| .NSD | Symantec Corporation | Indstillingsfiler | Norton System Doctor Sensor Configuration | Norton SystemWorks | Symantec Corporation |
| .NTS | IBM | Indstillingsfiler | Lotus Notes Traveler Server Config File | Symantec Norton 360 Version 6.0 | Symantec Corporation |
| .NU6 | Symantec Corporation | Systemfiler | Norton Utilities System DLL File | Norton Utilities | Symantec Corporation |
| .OCW | Symantec Corporation | Datafiler | Symantec ESM Oracle Configuration Watch Template File | Symantec ESM | Symantec Corporation |
| .OSA | Symantec Corporation | Ikke Almindelige Filer | W32/Sober-AD File | Norton Antivirus | Symantec Corporation |
| .OZD | Symantec Corporation | Datafiler | Win32.TrojanDownloader.Agent.OZD Trojan | Norton Antivirus | Symantec Corporation |
| .PCA | Sony | Lydfiler | Perfect Clarity Audio File | pcAnywhere | Symantec Corporation |
| .PFW | Symantec Corporation | Datafiler | Symantec LiveAdvisor Data | LiveAdvisor | Symantec Corporation |
| .PGD | Symantec Corporation | Disk billedfiler | PGP Disk Image | PGP Desktop | Symantec Corporation |
| .PGP | Autodesk, Inc. | Indstillingsfiler | AutoCAD Program Parameters File | PGP Desktop | Symantec Corporation |
| .PKR | Symantec Corporation | Kodet filer | Pretty Good Privacy Public Keyring | Pretty Good Privacy (PGP) | Symantec Corporation |
| .PQI | Symantec Corporation | Disk billedfiler | PowerQuest Drive Image | Symantec Ghost Solution Suite | Symantec Corporation |
| .PRS | Software Publishing Corporation (SPC) | Datafiler | Harvard Graphics Presentation | Norton SystemWorks | Symantec Corporation |
| .PUB | Microsoft Corporation | Sideopsætningsfiler | Microsoft Publisher Document | Pretty Good Privacy (PGP) | Symantec Corporation |
| .QAG | Symantec Corporation | Indstillingsfiler | Norton Desktop Quick Access Group File | Norton Desktop | Symantec Corporation |
| .QW | Symantec Corporation | Ikke Almindelige Filer | Write Program File | Symantec Q&A | Symantec Corporation |
| .R06 | Eugene Roshal | Komprimerede filer | Split Multi-volume RAR Compressed File | Symantec Ghost Solution Suite | Symantec Corporation |
| .R10 | Symantec Corporation | Sikkerhedskopifiler | Norton Ghost RAR File | Symantec Ghost Solution Suite | Symantec Corporation |
| .RBK | Microsoft Corporation | Sikkerhedskopifiler | Windows 95 Registry Backup File | PC Tools Registry Mechanic | Symantec Corporation |
| .RCD | Symantec Corporation | Videofiler | PcAnywhere Recorded Session File | pcAnywhere | Symantec Corporation |
| .REL | Nintendo | Spilfiler | Relocatable Module File | Norton Security | Symantec Corporation |
| .RHK | Symantec Corporation | Datafiler | Backdoor.Win32.Rbot.rhk Data | Norton Security | Symantec Corporation |
| .RLD | Symantec Corporation | Midlertidige Filer | Norton Commander Temporary | Norton Commander | Symantec Corporation |
| .RND | Symantec Corporation | Ikke Almindelige Filer | PGP Random Seed File | Pretty Good Privacy (PGP) | Symantec Corporation |
| .RRR | Symantec Corporation | Sikkerhedskopifiler | Registry Mechanic Backup File | PC Tools Registry Mechanic | Symantec Corporation |
| .S7P | Symantec Corporation | Ikke Almindelige Filer | SubSeven Malware | Norton Security | Symantec Corporation |
| .SCA | Symantec Corporation | Datafiler | Norton AntiVirus Scan File | Norton Antivirus | Symantec Corporation |
| .SCI | Open Source | Datafiler | Scilab Script | Norton Security | Symantec Corporation |
| .SDA | Oracle Corporation | Vektorbilledfiler | StarOffice Drawing | Pretty Good Privacy (PGP) | Symantec Corporation |
| .SDN | Robert K. Jung | Komprimerede filer | Shareware Distributors Network File | Norton Antivirus | Symantec Corporation |
| .SEC | Symantec Corporation | Ikke Almindelige Filer | Pretty Good Privacy Secret Key Ring | Pretty Good Privacy (PGP) | Symantec Corporation |
| .SHF | Symantec Corporation | Datafiler | Pretty Good Privacy (PGP) Share | Pretty Good Privacy (PGP) | Symantec Corporation |
| .SKR | Symantec Corporation | Ikke Almindelige Filer | PGP Private Keyring | PGP Desktop | Symantec Corporation |
| .SLF | Symantec Corporation | Ikke Almindelige Filer | Symantec License File | Symantec Ghost Solution Suite | Symantec Corporation |
| .SLG | Dionex Corporation | Datafiler | Chromeleon Audit Trail Data | Symantec EndPoint Protection 12 | Symantec Corporation |
| .SNF | The Open Group | Skrifttypefiler | UNIX Font | DESQview | Symantec Corporation |
| .SSY | Unknown Developer | Komprimerede filer | ScreenShare Compressed Data | Norton Antivirus | Symantec Corporation |
| .SV2I | Symantec Corporation | Sikkerhedskopifiler | Symantec System Index File | Symantec System Recovery Server Edition | Symantec Corporation |
| .T32 | Symantec Corporation | Datafiler | Drive Image 5 File | PowerQuest Drive Image | Symantec Corporation |
| .TBR | Adobe Systems Incorporated | Indstillingsfiler | Adobe Photoshop Custom Toolbar Preset | Norton Desktop | Symantec Corporation |
| .TMP | Mozilla | Sikkerhedskopifiler | General Temporary File | Norton Antivirus | Symantec Corporation |
| .TRG | Symantec Corporation | Datafiler | Symantec LiveUpdate File | Norton SystemWorks | Symantec Corporation |
| .TSA | Symantec Corporation | Ikke Almindelige Filer | Jnana.tsa Malware | Norton Antivirus | Symantec Corporation |
| .V2I | Symantec Corporation | Sikkerhedskopifiler | Norton Ghost Virtual Volume Image | Symantec Ghost Solution Suite | Symantec Corporation |
| .VBN | Symantec Corporation | Datafiler | Symantec Antivirus Quarantined Data File | Norton Antivirus | Symantec Corporation |
| .VCPREF | Symantec Corporation | Indstillingsfiler | Norton Antivirus Preferences File | Norton Security | Symantec Corporation |
| .VDB | Symantec Corporation | Datafiler | Symantec Virus Database File | Symantec EndPoint Protection 12 | Symantec Corporation |
| .VIR | Symantec Corporation | Ikke Almindelige Filer | Virus Infected File | Norton Security | Symantec Corporation |
| .VMC | Microsoft Corporation | Indstillingsfiler | Windows Virtual Machine Configuration File | DESQview | Symantec Corporation |
| .VSA | Symantec Corporation | Komprimerede filer | Virtual Software Archive | Wise Package Studio | Symantec Corporation |
| .WAS | Symantec Corporation | Udviklerfiler | Symantec Procomm Plus Script | Procomm Plus | Symantec Corporation |
| .WSE | Symantec Corporation | Datafiler | Wise File Format | Wise Package Studio | Symantec Corporation |
| .WSM | Symantec Corporation | Datafiler | Wise Package Studio Merge Module | Wise Package Studio | Symantec Corporation |
| .XDB | Symantec Corporation | Datafiler | Symantec Virus Database File | Symantec EndPoint Protection 12 | Symantec Corporation |
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