Datei-Erweiterungen beginnen mit Zeichen '#'
| Dateityp | Kategorie | Datei Format | |
|---|---|---|---|
| .!bt | Partially Downloaded Files | Unvollständige BitTorrent Download File | |
| .!ut | Partially Downloaded Files | uTorrent Unvollständige herunterladen | |
| .0 | Multiple Use Files | Hacha Split Archive File | |
| .000 | Multiple Use Files | Windows CE Installationsdatendatei | |
| .001 | Backup Files | Split Archive File | |
| .001 | Raster Graphics Files | Fax Datei | |
| .002 | Backup Files | Split Archive Part 2 Datei | |
| .0xe | Program Execution Files | F-Secure Virus umbenannt Datei | |
| .1 | Multiple Use Files | Unix Abschnitt 1 Man Seite | |
| .123dx | CAD Files | 123D Design Modell Datei | |
| .1pe | Data Files | TurboTax Formulardatei | |
| .1ph | Data Files | TurboTax Datei | |
| .1st | Text Files | Readme-Datei | |
| .264 | Digital Video Files | Ripped Video Data File | |
| .386 | Windows Device Driver Files | Windows Virtual Device Driver | |
| .3dm | 3D Files | Rhino 3D Model | |
| .3dr | Data Files | 3DMark Ergebnisse Datei | |
| .3ds | 3D Graphics Files | 3D Studio Scene | |
| .3dt | Data Files | 3D Topics Datei | |
| .3ga | Audio Files | 3GPP Audio File | |
| .3gp | Digital Video Files | 3GPP Multimedia Datei | |
| .3me | Data Files | TurboTax Formulardatei | |
| .3pe | Data Files | TurboTax 2008 Formulardatei | |
| .411 | Raster Graphics Files | Mavica Minibild | |
| .4db | Development Files | 4th Dimension Strukturdatei | |
| .4dd | Database Files | 4th Dimension Datenbank Data File | |
| .4dv | 4D File Format Files | 4D View Ultraschall Datei | |
| .4mp | Audio Files | 4-MP3-Datenbankdatei | |
| .555 | Settings Files | Black & White Wetter Einstellungsdatei | |
| .669 | Audio Files | UNIS Komponist 669 Module | |
| .6cm | Audio Files | Six-Channel-Modul | |
| .7z | Compressed Files | 7-Zip Komprimierte Datei | |
| .8ba | Adobe Plug-in Files | Photoshop Plug-in | |
| .8bf | Adobe Plug-in Files | Filter Factory Image Filter | |
| .8bi | Adobe Plug-in Files | Photoshop Plug-in | |
| .8cm | Audio Files | Acht-Channel-Modul | |
| .8xg | Data Files | TI-83/84 Plus Gruppendatei | |
| .8xk | Data Files | TI-83 Plus Application-Upgrade-Datei | |
| .8xs | Data Files | TI-83/84 Plus String Datei | |
| .8xv | Data Files | TI-83/84 Plus Variable Datei |