A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Num Sym
.??_ Files ending in "_" are often compressed install files of the same
name (e.g., .EX_ expands to .EXE, .DL_ expands to .DLL, etc.)
.? Multi-part Super Nintendo Game-console ROM Image (? = 1, 2, 3, etc.)
[See ZNES or SNES9x]
Might be part of a version number (e.g., OpenOffice.org1.0.1)
.??? Various numbers found in Totem Shared directory - Likely Totem Cash Ad Files
.??? Trend Micro Pattern File (File rootname: LPT$VPN)
.0 Inno Setup Binary File
.000 (000-999) Sequentially Numbered Backup Files
(000-600) Paperport Scanned Image
(.000 is desktop, .100-.600 images - number may include hex "a" to "f")
(000-999) ARJ Multi-volume Compressed Archive (also see .A00)
Microsoft Doublespace Compressed Data File
Geoworks Data File
.000 Trend Micro Pattern File (File rootname: LPT$VPN)
.00B PenSoft Payroll Backup File
.001 (001-999) HJSplit File (file splitter for large files)
(001-0??) Fresh Download Split File (splits files for
download and recombines later)
Fax Data File (various) [XnView]
Tagged Image Format File [IrfanView] [SwiftView]
Microsoft Drivespace Virtual Drive
.01B PenSoft Payroll Backup File
.075 Ventura Publisher 75dpi Screen Characters
.085 Ventura Publisher 85dpi Screen Characters
.091 Ventura Publisher 91dpi Screen Characters
.096 Ventura Publisher 96dpi Screen Characters
.0B PageMaker Printer Font LineDraw Characters
.1 Inno Setup Binary File
Roff/nroff/troff/groff Manual Source (UNIX)
.1-1 Likely a Section of an ASCII File (e.g., section 1-1 of a document)
.10X Gemini Bitmap Printer Graphics File
.113 Iomega Backup File
.123 Lotus File
.12M Lotus Smartmaster File
.12U PageMaker Font File
.15U PageMaker Printer Font
.196 Computer Snooper Log File
.1PE TurboTax Form File
.1ST Information (e.g., README.1ST)
.1TX 1toX File (Logipole)
.200 ebase 2.0 (EBASE.200) (Community Relationship Management database)
.22 Clipstream 20 Kb Stream
.24B 24-bit Graphic File
.261 H.261 Encoded Video File (usually .P64) [Player]
.263 H.263 Encoded Video File [Player]
.286 Windows Standard Mode Driver
.2BP Pocket PC Bitmap [XnView]
.2D 2D VersaCAD Drawing File
Amapi [XnView]
.2DA Infinity Game Engine AD&D Rule Set [More Info]
.2DC Cadwork 2D Catalog
.2DR Cadwork Road
.2GR Windows EGA/VGA Screen Grabber [EGA] [VGA]
.3 Solaris Device Configuration Assistant Boot Diskette
.301 Brooktrout Fax-Mail File [XnView]
.303 Seq-303 Settings
.320 Chromelion Demo Data File
.323 H.323 Internet Telephony
.32X Gens 2.0 File (Sega Genesis/Megadrive/32X Emulator)
.340 Chromelion Demo Data File
.386 Windows Enhanced Mode Driver or Swap File
.3A3 STABCAL (stability calculation for aqueous systems) File
.3A5 STABCAL (stability calculation for aqueous systems) File
.3B3 STABCAL (stability calculation for aqueous systems) File
.3B5 STABCAL (stability calculation for aqueous systems) File
.3C3 STABCAL (stability calculation for aqueous systems) File
.3C5 STABCAL (stability calculation for aqueous systems) File
.3CN Microsoft 3D Movie Maker Scene
.3D VersaCAD 3D Drawing File
Advent 3B2 Document
Al-Arabi Publisher Document (program taken over by WebX PowerPublisher)
.3D2 Serif 3DPlus2 Graphic
.3DB 3D Mark Database (system testing - unverified)
.3DM 3D Modeler File
.3DMF QuickDraw 3D Metafile
.3DML Rover 3D Modeling
.3DP Serif 3D Plus
.3DS 3D Studio Graphic
.3DV Visual Component File
.3DZ Easy 3D Creator Project File
.3F Advent 3B2 Template
Al-Arabi Publisher Template (program taken over by WebX PowerPublisher)
.3FX Corel Chart 3D Effect
.3GR Windows SVGA/XVGA Screen Grabber [SVGA]
.3H Advent 3B2 Tag Header
Al-Arabi Publisher Tag Header (program taken over by WebX PowerPublisher)
.3IN MSN Setup Information
.3K Advent 3B2 Keyboard Definition
Al-Arabi Publisher Keyboard Definition (program taken over
by WebX PowerPublisher)
.3M Advent 3B2 Macro
Al-Arabi Publisher Macro (program taken over by WebX PowerPublisher)
.3MM Microsoft 3D Movie Maker Movie
.3O Advent 3B2 Object Graphic
.3O3 STABCAL (stability calculation for aqueous systems) File
.3O5 STABCAL (stability calculation for aqueous systems) File
.3P Advent 3B2 Document Preferences
.3PI 3rd PlanIt File (CAD program for model railroads)
.3R Advent 3B2 Raster Image
Al-Arabi Publisher Raster Image (program taken over by WebX PowerPublisher)
.3RF Advent 3B2 Extensions Script Cross Reference
.3S Advent 3B2 Paragraph Styles
.3T Advent 3B2 Text
.3T4 Binary to ASCII Conversion
.3TA Triple-T Animation
.3TF Crystal Reports File
.3TH Microsoft 3D Movie Maker Actor
.3TP Triple-T Plug-in
.3X Advent 3B2 Document Entity
.3XE 3DLinX Entity (3D drawing tool)
.404 FruityLoops Channel State File (replaced by .FST in ver 2.5.0)
.411 Sony Mavica Data File [XnView]
.44 Clipstream 32 Kb Stream
.4A3 STABCAL (stability calculation for aqueous systems) File
.4A5 STABCAL (stability calculation for aqueous systems) File
.4B3 STABCAL (stability calculation for aqueous systems) File
.4B5 STABCAL (stability calculation for aqueous systems) File
.4BIT GoDot [XnView]
.4BT GoDot [XnView]
.4C$ 4Cast/2 Data
.4C3 STABCAL (stability calculation for aqueous systems) File
.4C5 STABCAL (stability calculation for aqueous systems) File
.4DB 4D Database Structure File (data fork - .RSR for resource fork)
.4DD 4D Database Data File (data fork - .4DR for resource fork)
.4DF 4D Database Windows Search Document
.4DL 4D Database Windows Log File
.4DR 4D Database Data File (resource fork - .4DD for data fork)
.4DS 4D Database Windows Data Segment
.4DX 4D Database Plug-in (data fork - .RSR for resource fork)
.4FI 4D Database Windows ASCII Map
.4FR 4D Database Windows Apply Formula Document
.4GE Informix 4GL Compiled Code
.4GL Informix 4GL Source
.4H3 STABCAL (stability calculation for aqueous systems) File
.4LB 4D Database Windows Label
.4LK 4D Database Windows Hot Link File
.4O3 STABCAL (stability calculation for aqueous systems) File
.4O5 STABCAL (stability calculation for aqueous systems) File
.4PP PhotoParade Player (digital slideshow)
.4QR 4D Database Windows Quick Report
.4ST 4D Database Windows Saved Set
.4SW 4DOS Swap File
.4TH FORTH Program
.4UG 4D Database Windows User/Groups Set
.4V Quartet Music File
.4VR 4D Database Windows Saved Variable
.51Z CropWalker
.521 Murray State University Trojan Ring Configuration File
.60D Vista Columbus Digital CCTV System Recording (also see .60H) [Reader]
.60H Vista Columbus Digital CCTV System Recording (also see .60D)
.602 T602 Text File
.669 669 Tracker Module
Unis Composer Music File
.699 Portable 699 Loader v0.2 [use Winamp]
.6AM Haltech ECU Fuel and Ignition Map
.6CM Triton FastTracker 6-Channel Music
.710 Korg Triton Music Workstation
.73I TI Bitmap [XnView]
.7Z 7-Zip Compressed File
.8 A86 Assembler Program File
.82B TI-82 Graph Link Backup
.82G TI-82 Graph Link Group
.82I TI Bitmap [XnView]
.82P TI-82 Graph Link Program
.83G TI-83 Graph Link Group
.83I TI Bitmap [XnView]
.83P TI-Graph Link (TI-83 Program)
.85I TI Bitmap [XnView]
.86I TI Bitmap [XnView]
.86P TI-86 Calculator File (mainly a game file)
.8BA Adobe PhotoDeluxe Plugin (also ends in E, F, I, X, & Y)
(May also work in Paint Shop Pro)
.8BF Filter Factory File [Added] (May also work in Paint Shop Pro) [IrfanView]
.8CM Triton FastTracker 8-Channel Music
.8LI Adobe Photoshop Plug-in (Often works with other graphics programs)
.8M PageMaker Math 8 Printer Font
.8SVX Sound File [Linux Player]
.8U PageMaker Roman 8 Printer Font
.8XE TI-83 Program
.8XK MirageOS Flash Application for TI-83 Plus
.8XP TI-83 Program
.8XU TI-83 Program
.89I TI Bitmap [XnView]
.906 Calcomp Plotter File
.917 Trend Antivirus File
.92G TI-92 Graph Link Group
.92I TI Bitmap [XnView]
.92P TI-92 Graph Link Program
.92T TI-92 Graph Link Text
.999 Multipass Security File
.9KP Archived Doom 3 TGA Graphics (TGA.9KP)
.9XK TI-92 Circuit Analysis File
.9XY TI-92+ Archived Program
.9XZ TI-92+ Program