Collector: Nosa Lee
Original Address: https://www.seeksunslowly.com/file-extensions-types-references-symbol
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Now, I collected all the known file extensions/types for your reference, I grouped them according to the first character due to there are too many file extensions/types.

The following file extensions/types are grouped as Symbol, to refer to more file extensions/types or download them (a compressed txt file that separates the extension and description with ” : “), please click the following links.

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O P Q R S T U V W X Y Z
Number  Symbol

Download All File Types/Extensions in ONE Compressed File

!BT   BitTorrent Partially Downloaded File (Bram Cohen; now maintained by BitTorrent, Inc.)
!C   Graphics Converter Pro
!UT   Torrent Incomplete Download (Ludvig Strigeus)
###   DoubleSpace Compressed Volume
###   QTIC Temporary File
###   Temporary File
#01   Numbered Picture Files
#24   Locoscript 24-pin Printer Data File (LocoScript Software)
#GF   MetaFont Font File
#IB   Locoscript Dot Matrix Data File (LocoScript Software)
#SC   Locoscript Dot Matrix Data File (LocoScript Software)
#ST   Locoscript Dot Matrix Printer Definition File (LocoScript Software)
#VC   ViewChoice Compressed File (Payroll Associates, LLC)
$   BASIC VB VB1D Komp Symbole File
$#!   AOL 5.0 Virchk File (America Online, Inc.)
$#!   Cryptext
$$$   Temporary File
$$$   Used by OS/2 to keep track of archived files
$$$   Backup
$$A   OS/2 (IBM)
$$F   OS/2 Database (IBM)
$$M   3D GameStudio Backup Map (Conitec Datasystems, Inc)
$$P   OS/2 Notes (IBM)
$$S   OS/2 Spreadsheet (IBM)
$$_   Midiprg Capella Compressed File
$00   DOS Pipe File
$01   DOS Pipe File
$01   Midi File
$02   DOS Pipe File
$02   Midi File
$03   DOS Pipe File
$04   DOS Pipe File
$05   DOS Pipe File
$1   ZX Spectrum-Emulator
$A   AutoCAD Autosave File (Autodesk, Inc.)
$AC   AutoCAD Autosave File (Autodesk, Inc.)
$AC   $&Sense Data File (Monogram Software/Software Toolworks/The Learning Company)
$B5   Apple II ProDOS 16 or GS/OS Shell Application (Apple Inc.)
$C   Graphics Converter Pro
$D$   OS/2 Planner Data File
$DB   dBASE Temp File
$DX   Ca Visual Objects Platform for Developer (CAVO) Backup Index File (CA)
$ED   C/C++ Temporary Editor File (Microsoft Corporation)
$ED   C Editor Temporary File (Microsoft Corporation)
$EU   Midiprg Mustat Compressed File
$ID   Cubase Compressed File (Steinberg)
$LL   Cubase Compressed File (Steinberg)
$LN   C++ TLink Response File (Borland Software Corporation)
$NG   Midiprg Mustat Compressed File
$OL   DOS Pipe File
$ON   Cubase Fonts Compressed File (Steinberg)
$RI   Cubase Audio Compressed File (Steinberg)
$RR   Cubase Compressed File (Steinberg)
$S   Graphics Converter Pro
$TF   Cubase Fonts Compressed File (Steinberg)
$VM   Windows 3.x Virtual Manager Temp File (Microsoft Corporation)
$WM   Epson Creative Studio Example File (Epson Corporation)
$XE   Mustat Compressed Audio File
&&&   Temporary File
(D)   pcAnywhere Temporary File
)2(   LHA Archiver Temporary File
—   Windows Temporary File
—   Microsoft Backup File Set (Microsoft Corporation)
-5   Audio Utility Tuningwrench Compressed File
.SSKD   On Schedule (Squidge Software)
???   ANY Three Character Audio File
???   Trend Micro Virus Pattern File (Trend Micro, Inc.)
??Z   LoseThos Compressed File (Terry A. Davis)
??_   Microsoft KWAJ compressed (Phil Katz’s ‘deflate’)
??_   Microsoft SZDD compressed (Haruhiko Okumura’s LZSS)
??_   InstallShield Compressed File (Acresso Software Inc.)
?Q?   Squeeze
@@@   Codeview for C (Microsoft Corporation)
@@@   Screen Files
@HA   E-mail Animator (IMSI/Design LLC)
[B]   Amiga Paint File (Amiga)
_00   Soundtrack Compressed File
_01   Compressed BIOS File
_01   Soundtrack Compressed File
_02   Soundtrack Compressed File
_1   Audio Utility Tuningwrench Compressed File
_2   Audio Utility Tuningwrench Compressed File
_3   Audio Utility Tuningwrench Compressed File
_8   Audio Utility Tuningwrench Compressed File
_CRYPT   Virus.Win32.Gpcode.ak Encrypted Document
_DB   Stratum Data Icons File
_DD   Norton Disk Doctor Recovered File (Symantec Corporation)
_DL   Form of DLL File
_DM   Nuts n Bolts Disk Minder Recovered File
_EX   Form of EXE File
_H   Type Manager Japanese Font Outline (Adobe Systems Incorporated)
_MP   InstallShield Temporary Installer File (Acresso Software Inc.)
_NT   Form of NT File
_RS   RVS-COM Service Pack (Living Byte Software GmbH)
_SLN   Visual Studio Solution (Microsoft Corporation)
_SLN60   Visual Studio 6.0 Solution (Microsoft Corporation)
_SLN70   Visual Studio .NET 2002 Solution (Microsoft Corporation)
_SLN71   Visual Studio .NET 2003 Solution (Microsoft Corporation)
_SLN80   Visual Studio 2005 Solution (Microsoft Corporation)
_SLN90   Visual Studio 2008 Solution (Microsoft Corporation)
_SY   Form of SYS File
_V   Type Manager Japanese Font Metrics (Adobe Systems Incorporated)
_VBXSLN80   Visual Basic Express 2005 Solution (Microsoft Corporation)
_VBXSLN90   Visual Basic Express 2008 Solution (Microsoft Corporation)
_VCPPXSLN80   Visual C++ Express 2005 Solution (Microsoft Corporation)
_VCPPXSLN90   Visual C++ Express 2008 Solution (Microsoft Corporation)
_VCSXSLN80   Visual C# Express 2005 Solution (Microsoft Corporation)
_VCSXSLN90   Visual C# Express 2008 Solution (Microsoft Corporation)
_VJSXSLN80   Visual J# Express 2005 Solution (Microsoft Corporation)
_VWDXSLN80   Visual Web Developer Express 2005 Solution (Microsoft Corporation)
_VWDXSLN90   Visual Web Developer Express 2008 Solution (Microsoft Corporation)
_VX   Form of VXD File
_ZA   CleverZip Temporary File
__A   FFSJ Split/Join File (Fast File Joiner)
__INCOMPLETE___   WinMX Incomplete Download (Frontcode Technologies)
___   Adinf table
___FPE   Folder Password Expert Protected Folder (ZQS Software Team)
{PB   Backup
{SA}PROJ   {smartassembly} Project (Cachupa)
{SA}REPORT   {smartassembly} Exception Report (Cachupa)
~   Temporary File
~$~   1st Reader Temporary File
~01   (~01..~99) Norton Editor Backup File
~1~   Illum Source File
~??   Locked File
~AP   C++ AppExpert Project Database File (Borland Software Corporation)
~BM   Img RC File
~CU   Cursor File
~DE   C++ Project Backup File (Borland Software Corporation)
~DF   Delphi DFM File Backup (Borland Software Corporation)
~DFM   Delphi Backup File (Borland Software Corporation)
~DP   Delphi DPR File Backup (Borland Software Corporation)
~DR   ARKEY Drawing Backup
~H   AZZ Cardfile Heap (Antanas Zdramys)
~I   AZZ Cardfile Index (Antanas Zdramys)
~MN   Norton Commander Menu Backup
~NT   XP Install File
~NT   NT Install Files
~PA   Delphi PAS File Backup (Borland Software Corporation)
~PAS   Delphi Backup (Borland Software Corporation)
~PR   Terramodel Project Backup
~RE   Image File
~SG   TAPCIS Message Index File
~T~   RK Archiver Temporary File (RK Software)
~_~   Temporary File (Microsoft Corporation)
~~A   Ap File
~~D   Windows Applog File
~~F   Windows Applog File
~~M   Windows Applog File
~~~   Temporary file

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  Number  Symbol

Download All File Types/Extensions in ONE Compressed File

【赞赏 / Reward】