3.
ARENA - Quake 3 Engine Arena File
4.
AS - ActionScript File
5.
ASA - ASP Configuration File
6.
ASM - Assembler source code file
7.
ATT - Web Form Data file
8.
AVS - AviSynth Script File
9.
BBZ - BerryBuzz Backup File
10.
BCS - Boland Calibration Settings File
11.
BMK - Nokia Device Bookmark File
12.
BOOK - Budget In Brief Book File
13.
BPW - Bitmap World File
15.
BSDL - Boundary Scan Description Language File
16.
BSH - BeanShell Script
17.
CEL - Celestia Script File
18.
CELX - Celestia Script
19.
CFG - Configuration File
20.
CFG - Cal3D Model Configuration File
21.
CFG - Wesnoth Markup Language File
22.
CGI - Common Gateway Interface Script
23.
CHART - Feedback Chart File
24.
CHT - Windows Chinese Traditional Noise-Word List File
25.
CMD - Windows Command File
27.
CONF - Generic Configuration File
28.
CONFIG - Configuration File
29.
CPQ - Compaq OEM Disc Configuration File
30.
CPR - Windows Phone Display Settings File
32.
CSV - Comma Separated Values File
33.
CU - CUDA Source Code File
34.
CUS - AutoCAD Custom Dictionary File
35.
DBA - DarkBASIC Source Code File
36.
DDF - Diamond Directive File
37.
DIF - Data Interchange Format
39.
DIZ - Description in Zip File
40.
DSC - Text Description File
41.
DTD - Document Type Definition File
42.
DXL - Domino XML Language File
43.
DXL - Rational DOORS Script
44.
ERB - Ruby ERB Script
45.
ERL - Erlang Source Code File
47.
EXW - Euphoria Source code File
48.
FFD - SharePoint FFDDumper Log
49.
FRM - Visual Basic Text Form
50.
GALAXY - Blizzard Galaxy File
51.
GM - GameMonkey Script
52.
GSD - General Station Description File
54.
HRL - Erlang Header File
56.
HTM - Hypertext Markup Language File
57.
ICF - Zoom Router Configuration File
58.
IIF - Intuit Interchange Format File
59.
INF - Setup Information File
60.
INFO - Generic Information File
61.
INI - Windows Initialization File
62.
ION - File Description File
64.
ISS - Inno Setup Script
65.
JAV - Java Source File
66.
JAVA - Java Source Code File
67.
JPN - Windows Japanese Noise-Word List File
68.
JRTF - JAmes OS Rich Text File
69.
JSON - JavaScript Object Notation File
70.
KDS - KD Player Skin File
71.
LASTLOGIN - Minecraft User Credential File
72.
LDF - Lingoes Dictionary Source File
73.
LEGAL - DaveTech Legal Document
74.
LIST - JAR Index File
75.
LNG - Language Application Support File
78.
LUA - Lua Source File
79.
M - Mathematica Input File
80.
M - Mercury Source Code File
82.
MANIFEST - Windows Application Manifest File
84.
MCMETA - Minecraft Animation File
85.
MD - Markdown Documentation File
86.
MD - Machine Description File
88.
MDL - Warcraft 3 3D Model Text File
89.
MDOWN - Markdown File
90.
ME - Readme Text File
91.
MENU - Quake 3 Engine Menu File
92.
MISSION - Vega Strike Mission File
93.
MNU - AutoCAD Interface Layout File
94.
MNU - TomTom Menu File
95.
MOF - Managed Object Format File
96.
MPS - Mathematical Programming System File
97.
MSC - Microsoft Management Console Snap-in Control File
98.
MSHA - Microsoft Help Asset File
99.
MXML - Flex MXML Component
100.
NFO - Warez Information File
101.
OCR - FAXGrapper Fax Text File
102.
ODF - Battlezone Object Definition File
105.
P6 - Perl 6 Source Code File
106.
PER - Age of Empires Personality File
107.
PGP - AutoCAD Program Parameters File
108.
PHL - Kindle Popular Highlights File
110.
PLR - rFactor Player File
111.
PML - PADGen program information file
112.
PP - Pocket Physics Sketch File
116.
PYM - PYM Macro Preprocessor File
117.
QC - Half-Life Model Compiler Script
118.
QC - QuakeC Source Code File
119.
REFERENCE - Budget In Brief Reference File
120.
REQ - Canon SD Card Version Request File
121.
RPT - Generic Report
122.
RST - reStructuredText File
123.
RTX - Rich Text Document
124.
S - Source Code File
125.
S2ML - StarCraft 2 Map Localization File
126.
S2QL - StarCraft 2 Unit Localization File
127.
SAMI - Synchronized Accessible Media Interchange file format
128.
SB - Small Basic Source Code File
129.
SBV - YouTube Captions File
130.
SCT - Windows Scriptlet
131.
SHA1 - SHA-1 Hash File
132.
SHA512 - SHA 512 Hash File
133.
SHADER - Quake 3 Engine Shader File
134.
SHTM - HTML Server Side Include File
135.
SIF - Windows Setup Information File
136.
SLST - Game Data File
137.
SMD - Valve Studiomdl Data File
138.
SPS - Quake 3 Engine Speaker Definition File
139.
SQL - Structured Query Language Data File
141.
SSC - Celestia Solar System Catalog File
142.
STC - Siemens Theme File
143.
TAK - TAK 2000 Thermal Model File
144.
THA - Windows Thai Noise-Words List File
145.
TRI - Triangle Mesh File
146.
TSV - Tab Separated Values File
147.
TXT - Plain Text File
148.
UNX - Unix Text File
149.
URL - Internet Shortcut
150.
UT8 - Ghost Master Language File
151.
UTF8 - Unicode UTF8-Encoded Text Document
152.
VDF - Valve Data File
153.
VDM - VEDIT Macro File
154.
VNT - Mobile Phone vNote File
155.
WSC - Windows Script Component
157.
XDR - XML-Data Reduced File
158.
XSLT - XSL Transformation File
160.
ZAP - Zero Administration Package File