| EXTENSION | TYPE | DETAILS | OPENS WITH |
| BMP | IMAGE | Windows BITMAP format | MS-Paint, AOL, ViewPrint, Paint Shop Pro |
| .GIF | IMAGE | CompuServeŽ Graphical Interchange Format, one of the two (with .JPG) most common graphics format found on the Internet. | AOL, MS Internet Explorer,ViewPrint, Paint Shop Pro |
| .JPG .JPEG .JPE .JFIF |
IMAGE | 24bit common Internet file format for color-rich images (developed by the Joint Photographic Experts Group) | Apple Picture Viewer, AOL, MS Internet Explorer, ViewPrint, Paint Shop Pro |
| .TIF .TIFF |
IMAGE | Tagged Information File Format, a large high quality image format. | MS Internet Explorer, ViewPrint, Paint Shop Pro |
| .TGA | IMAGE | Truevision Targa image file. | ViewPrint, Paint Shop Pro |
| .PCX | IMAGE | ZSoft Paintbrush file. | MS-Paint, MS WordPad, MS-Works, ViewPrint, Paint Shop Pro |
| .WMF | IMAGE | Microsoft Windows Metafile | MS WordPad, MS-Works, ViewPrint, Paint Shop Pro |
| .ART | IMAGE | "Static Art" compressed AOL graphic format | AOL |
| .RLE | IMAGE | CompuServe and Microsoft Windows graphics format. | ViewPrint, Paint Shop Pro |
| .DIB | IMAGE | RGB/RLE encoded MS Windows and OS/2 format | ViewPrint, Paint Shop Pro |
| .CDR | IMAGE | CorelDRAW! image format | Paint Shop Pro |
| .CGM | IMAGE | Computer Graphics Metafile | Paint Shop Pro |
| .DRW | IMAGE | Micrografx Draw format | Paint Shop Pro |
| .DXF | IMAGE | Autodesk graphic | Paint Shop Pro |
| .GEM | IMAGE | Ventura/GEM image | Paint Shop Pro |
| .HGL | IMAGE | Hewlett-Packard Graphics Language image file | Paint Shop Pro |
| .PCT | IMAGE | Common Apple Mac graphics format | Paint Shop Pro |
| .PIC | IMAGE | Lotus Development Corp, MAC graphic format | Apple Picture Viewer, Paint Shop Pro |
| .WPG | IMAGE | Corel WordPerfect image format | Paint Shop Pro |
| .AVI | MOVIE | Audio/Video Interleave, file format used by Video for Windows | Media Player, ViewPrint |
| .MOV | MOVIE | Apple QuickTime Movie | Apple QuickTime Movie Player, ViewPrint |
| .MPG .MPEG |
MOVIE | Moving Picture Experts Group movie file | Apple QuickTime Movie Player, ViewPrint |
| .FLI .FLC |
MOVIE | Autodesk Animator Pro "Flick Movie" file | ViewPrint |
| .WAV | SOUND | Windows standard waveform sound files | Sound Recorder, WinDat, Media Player, AOL, MS-Internet Explorer, ViewPrint, WHAM |
| .MID | SOUND | Musical Instrument Digital Interface, orchestrated digital sound files | Media Player, MIDI Orchestrator, AOL, MS Internet Explorer, ViewPrint |
| .RMI | SOUND | Digital sound format, similar to MIDI | Media Player, MIDI Orchestrator |
| .AU | SOUND | Sun Microsystems /Unix sound file format, commonly found on the Internet. | AOL, MS Internet-Explorer, WHAM |
| .AIFF .AIF .AIFC .IFF |
SOUND | Audio Interchange File Format, several common Apple Mac formats | MS Internet Explorer, WHAM |
| .VOC | SOUND | Creative Labs [Sound Blaster] audio format primarily for DOS | WHAM |
| .VOI | SOUND | Voyetra Voice files | WinDat |
| .CDA | SOUND | CD Audio files | MS CD Player, AudioStation |
| .RA .RAM .RM .RTS |
SOUND | RealAudio files, Internet streamed audio and video | RealPlayer |
| .TXT | TEXT | Standard MS-DOS text format | MS NotePad, MS WordPad, all text based programs |
| .DOC | TEXT | Microsoft Word for Windows text document | MS WordPad, MS Works |
| .RTF | TEXT | Microsoft Rich Text Format | MS WordPad, MS Works |
| .LOG | TEXT | Log files (ie error logs, chat logs) | Logview, MS NotePad, MS WordPad |
| .WPS .BPS .WKS .BKS .WDB .BDB .WCM .BCM |
TEXT | Various Microsoft Works file formats (Word Processor, Spreadsheet,Database and Communications) | MS Works |
| .WRI | TEXT | Windows Write files | MS Works |
| .XLS | TEXT | Microsoft Excel Spreadsheet | MS Works |
| TEXT | Adobe Acrobat files | ACROREAD | |
| .WP .WPD .WP4 .WP5 .WP6 .WPT |
TEXT | Corel WordPerfect documents | MS Works |
| .HTM .HTML .SHTML |
TEXT | HyperText Markup Language, Internet documents (AKA webpages) | MS Internet Explorer, AOL, MS NotePad, MS WordPad |
| .LWP .SAM .SMM |
TEXT | Lotus WordPro documents | MS Works |
| .ZIP | MISC | Compressed file archives used to speed up and package files on the Internet | PKUNZIP (on the Diagnostics CD), WinZip, ViewPrint |
| .EXE | MISC | Executable program OR self-extracting archive file | N/A [EXECUTABLE] |
| .MIM .MME .UUE .UU1 .HQX .MSG |
MISC | Encoded files often used in Internet email | WinZip, ViewPrint |
| .FON | MISC | System font | FontView |
| .TTF | MISC | TrueType Fonts | FontView |
| .THEME | MISC | Desktop Theme file | MS Plus! |
| .SCR | MISC | Generally Screen Saver files | N/A [EXECUTABLE] |
| .QIC | MISC | Microsoft Backup File | Microsoft Backup |
| .HLP | MISC | Microsoft Help Documentation | WINHLP32 |
| .GRP | MISC | Microsoft Program Group file | GRPCONV |
| .PAB | MISC | Microsoft Personal Address Book | Microsoft Exchange |
| .ICO | MISC | Icon File | N/A |
| .CUR | MISC | Mouse cursor | N/A |
| .ANI | MISC | Animated mouse cursor or icon | N/A |
| .CHK | MISC | File fragments saved by ScanDisk | N/A |
| .DLL | SYSTEM | Dynamic-Link Library | N/A |
| .COM | SYSTEM | DOS Application | N/A |
| .SYS | SYSTEM | System Config file | SYSEDIT, NotePad |
| .BAT | SYSTEM | MS-DOS Batch file | SYSEDIT, NotePad |
| .BIN | SYSTEM | Binary file | N/A |
| .DAT | SYSTEM | Data file | N/A |
| .DRV | SYSTEM | Driver file | N/A |
| .386 | SYSTEM | Virtual device driver | N/A |
| .VXD | SYSTEM | Virtual device driver | N/A |
| .INF | SYSTEM | Hardware Info file | NotePad |
| .INI | SYSTEM | System Initialization file | SYSEDIT, NotePad |
| .OCX | SYSTEM | MS OLE control | N/A |
| .VBX | SYSTEM | Visual Basic control | N/A |
| .REG | SYSTEM | Registry file | REGEDIT, NotePad |
| .TMP | SYSTEM | Windows temporary file | N/A |
