The X
extension name file type Classification
!BT BitTorrent Incomplete Download File Other files
!QB qBittorrent Partial Download File Other files
!SYNC BitTorrent Partially Synced File Other files
!UT uTorrent Incomplete Download Other files
$$$ Temporary File backup file
$01 DOS Pipe File developer files
$DB dBASE Temporary File backup file
$ER GroupWise Database database file
0 Shared Library Link File System Files
0 Hacha Split Archive File Compressed file
0 M3 DS Real Save File game files
00 The Ur-Quan Masters Saved Game Slot 0 File game files
000 Indexing Service Data File System Files
000 Windows CE Installation Data File Other files
000 Virtual CD Disc Image File disk image file
000 DoubleSpace Compressed File Compressed file
001 Split Archive File backup file
001 Norton Ghost Disk Backup backup file
001 Fax File raster image file
001 Multimedia Fusion Backup File developer files
001 Snes9x Slot 2 Saved State game files
002 Split Archive Part 2 File backup file
003 Split Archive Part 3 File backup file
0CC 0CC-FamiTracker Module audio file
0XE F-Secure Renamed Virus File executable file
1 Unix Section 1 Man Page Other files
113 Iomega Backup File backup file
123 Lotus 1-2-3 Spreadsheet Spreadsheet file
123 PCB123 Circuit Board Design CAD file
123C Autodesk 123C Drawing CAD file
123D Autodesk 123D Drawing CAD file
123DX 123D Design Model File CAD file
12M Lotus 1-2-3 SmartMaster File Spreadsheet file
17T 2017 StudioTax Return File data file
1PE TurboTax Form File data file
1PH TurboTax File data file
1ST Readme File text file
208 ASUS Notebook BIOS 208 Update File System Files
256 Descent 2 Color Palette File settings file
264 Ripped Video Data File video file
264 IP/CCTV Video File video file
2BP Pocket PC Bitmap Image File raster image file
2D VersaCAD 2D Drawing File CAD file
2FS Puppy Linux Save State File System Files
2MG Apple IIGS Disk Image disk image file
2SF Nintendo DS Sound File audio file
2SFLIB Nintendo DS Audio Library File audio file
323 H.323 Internet Telephony File Other files
32X Sega 32X ROM game files
360 360desktop Panorama File raster image file