File extensions
There are many file extensions which have been used over the years. A considerable amount are now defunct and not used. Good Netiquette IQ espouses not sending formats which are uncommon. All attachments should also be identified in the text of the email itself. An email should never be sent which requires a custom program to open it unless it is expected. The following is a compilation of file extensions which are hopefully contemporary. If any reader identifies an outdated extension, please let us know. This list has extensions from a to m.
List of File Extensions
File extensions are based on utilizing all possible combinations of English characters. Three alpha characters shows a possible combination of close to 20,000 possibilities. If numbers or additional letters are added, far more combinations are possible. There are a number of categories for file extensions. Among these are compression data archive, media archiving, computer aided design, database, fonts, graphs (vector, 3D), object code, source code and music. There are more categories for scientific, video, games, medical and more. The following list shows most of the formats used in common email.
3DS 3D Studio
8BF Adobe Photoshop
AAC Advanced Audio Coding (Mac)
APP Apple Executable
AFM Adobe font metrics (Type 1)
AI Adobe Illustrator graphics,
AIF Digital audio (Mac)
AIFC Digital audio (Mac)
AJAX Asynchronous JavaScript And XML
ALB JASC Image Commander
ANI Animated cursor
ANN Windows help annotations
ANS ANSI text
ARC ARC, ARC+ compressed archive
ASA ASP info
ASAX ASP.NET file
ASC ASCII file
ASCX ASP.NET file
ASD Word temporary document
ASMX ASP.NET file
ASP Active Server Page
ASPX ASP.NET file
ATT AT&T Group IV fax
AU Digital audio (Sun)
AVI Microsoft movie format
BAK Backup
BAS BASIC source code
BAT DOS, OS/2 batch file
BIN Driver, overlay
BML Bookmark library (SyncURL)
BMP Windows & OS/2 bitmap
BMK Windows help bookmarks
C C source code
CAB Microsoft compressed format for distribution
CAL Windows calendar,
CCB Visual Basic animated button
CDA CD audio track
CDX FoxPro and Clipper index
CFG Configuration
CGM CGM vector graphics
CHK DOS/Windows corrupted file (Chkdsk)
CIT Intergraph scanned image
COB COBOL source code,
COB Truespace 3-D file
CLP Windows clipboard
CLS Visual Basic class module
CMP JPEG bitmap, LEAD bitmap
CMP RichLink composed format
CNT Windows help contents
COM Executable program
CPD Fax cover document
CPE Fax cover document
CPI DOS code page
CPL Windows control panel applets
CPP C++ source code
CPR Knowledge Access bitmap
CRD Cardfile file
CSV Comma delimited
CUR Cursor
CUT Dr. Halo bitmap
CV5 Canvas 5 vector/bitmap
DAT Data
DB Paradox table
DBF dBASE database
DBT dBASE text
DCA IBM text
DCM DICOM medical image
DCS Color separated EPS format
DCX Intel fax image
DCT Dictionary
DEF Definition
DIB Windows DIB bitmap
DIC Dictionary
DIF Spreadsheet
DISCO Publishing and Discovering Web Services
DLG Dialogue script
DLL Dynamic link library
DOC Microsoft Word Document (2003-2007)
DOCX Microsoft Word Document (2008-)
DOT Microsoft Word template
DPI Pointline bitmap
DRV Driver
DWG AutoCAD vector format
DX Autotrol document imaging
DXF AutoCAD vector format
ED5 EDMICS bitmap (DOD)
EMF Enhanced Windows metafile
EPS Encapsulated PostScript
EXE Executable program
FAX Various fax formats
FLC Autodesk animation
FLI Autodesk animation
FLT Graphics conversion filter
FMT dBASE Screen format
FMV FrameMaker raster & vector graphics
FNT Windows font
FOG Fontographer font
FON Windows bitmapped font,
FON Telephone file
FOR FORTRAN source code
FOT Windows TrueType font info.
FPX FlashPix bitmap
FRM dBASE report layout
FTG Windows help file links
FTS Windows help text search index
GDF GDDM format
GED Arts & Letters graphics
GEM GEM vector graphics
GID Windows help global index
GIF CompuServe bitmap
GP4 CALS Group IV - ITU Group IV
GRA Microsoft graph
GRP Windows ProgMan Group
GZ UNIX Gzip
H C header
HED HighEdit document
HGL HP Graphics language
HLP Help text
HPJ Visual Basic help project
HPP C++ program header
HPL HP Graphics language
HT HyperTerminal
HTM HTML document (Web page)
HTML HTML document (Web page)
HTX HTML extension file
ICA IBM MO:DCA - IOCA bitmap
ICO Windows icon
IDC Internet Database Connector
IDD MIDI instrument definition
IDE Development environment configuration
IMG Macintosh image file
IMG GEM Paint bitmap
INF Setup information
INI Initialization
JAR JAVA data
8BF Adobe Photoshop
AAC Advanced Audio Coding (Mac)
APP Apple Executable
AFM Adobe font metrics (Type 1)
AI Adobe Illustrator graphics,
AIF Digital audio (Mac)
AIFC Digital audio (Mac)
AJAX Asynchronous JavaScript And XML
ALB JASC Image Commander
ANI Animated cursor
ANN Windows help annotations
ANS ANSI text
ARC ARC, ARC+ compressed archive
ASA ASP info
ASAX ASP.NET file
ASC ASCII file
ASCX ASP.NET file
ASD Word temporary document
ASMX ASP.NET file
ASP Active Server Page
ASPX ASP.NET file
ATT AT&T Group IV fax
AU Digital audio (Sun)
AVI Microsoft movie format
BAK Backup
BAS BASIC source code
BAT DOS, OS/2 batch file
BIN Driver, overlay
BML Bookmark library (SyncURL)
BMP Windows & OS/2 bitmap
BMK Windows help bookmarks
C C source code
CAB Microsoft compressed format for distribution
CAL Windows calendar,
CCB Visual Basic animated button
CDA CD audio track
CDX FoxPro and Clipper index
CFG Configuration
CGM CGM vector graphics
CHK DOS/Windows corrupted file (Chkdsk)
CIT Intergraph scanned image
COB COBOL source code,
COB Truespace 3-D file
CLP Windows clipboard
CLS Visual Basic class module
CMP JPEG bitmap, LEAD bitmap
CMP RichLink composed format
CNT Windows help contents
COM Executable program
CPD Fax cover document
CPE Fax cover document
CPI DOS code page
CPL Windows control panel applets
CPP C++ source code
CPR Knowledge Access bitmap
CRD Cardfile file
CSV Comma delimited
CUR Cursor
CUT Dr. Halo bitmap
CV5 Canvas 5 vector/bitmap
DAT Data
DB Paradox table
DBF dBASE database
DBT dBASE text
DCA IBM text
DCM DICOM medical image
DCS Color separated EPS format
DCX Intel fax image
DCT Dictionary
DEF Definition
DIB Windows DIB bitmap
DIC Dictionary
DIF Spreadsheet
DISCO Publishing and Discovering Web Services
DLG Dialogue script
DLL Dynamic link library
DOC Microsoft Word Document (2003-2007)
DOCX Microsoft Word Document (2008-)
DOT Microsoft Word template
DPI Pointline bitmap
DRV Driver
DWG AutoCAD vector format
DX Autotrol document imaging
DXF AutoCAD vector format
ED5 EDMICS bitmap (DOD)
EMF Enhanced Windows metafile
EPS Encapsulated PostScript
EXE Executable program
FAX Various fax formats
FLC Autodesk animation
FLI Autodesk animation
FLT Graphics conversion filter
FMT dBASE Screen format
FMV FrameMaker raster & vector graphics
FNT Windows font
FOG Fontographer font
FON Windows bitmapped font,
FON Telephone file
FOR FORTRAN source code
FOT Windows TrueType font info.
FPX FlashPix bitmap
FRM dBASE report layout
FTG Windows help file links
FTS Windows help text search index
GDF GDDM format
GED Arts & Letters graphics
GEM GEM vector graphics
GID Windows help global index
GIF CompuServe bitmap
GP4 CALS Group IV - ITU Group IV
GRA Microsoft graph
GRP Windows ProgMan Group
GZ UNIX Gzip
H C header
HED HighEdit document
HGL HP Graphics language
HLP Help text
HPJ Visual Basic help project
HPP C++ program header
HPL HP Graphics language
HT HyperTerminal
HTM HTML document (Web page)
HTML HTML document (Web page)
HTX HTML extension file
ICA IBM MO:DCA - IOCA bitmap
ICO Windows icon
IDC Internet Database Connector
IDD MIDI instrument definition
IDE Development environment configuration
IMG Macintosh image file
IMG GEM Paint bitmap
INF Setup information
INI Initialization
JAR JAVA data
JFF JPEG bitmap
JIF JPEG bitmap
JPG JPEG bitmap
JS JavaScript file
JT JT Fax
JTF JPEG bitmap
KDC Kodak Photo bitmap
KFX Kofax Group IV fax
LBL dBASE label
LEG Legacy text
LIB Function library
LIT Microsoft Reader file
LOG Log file
LQT Liquid Audio
LSN Topic list (CDE)
LST List
LV LaserView Group IV
M1V MPEG file
M3U MPEG file
MAC MacPaint bitmap
MAK Visual Basic/MS C++ project
MAP Link editor map
MBX Mailbox (e-mail)
MCS MathCAD format
MCW Word for Macintosh document
MDB Access database
MDF Mircrosoft SQL server database
MET OS/2 Metafile
MEU Menu items
MDX dBASE IV multi-index
MID MIDI sound file
MME MIME-encoded file
MMF Microsoft mail file
MMM Macromind animation format
MOD Eudora script file
MOV QuickTime movie
MPA MPEG file
MP2 MPEG file
MP2V MPEG file
MP3 MPEG-1 Layer 3 audio
MPE MPEG file
MPEG MPEG file
MPG MPEG file
MPP Microsoft Project
MSG Message file
MSP M1V
JIF JPEG bitmap
JPG JPEG bitmap
JS JavaScript file
JT JT Fax
JTF JPEG bitmap
KDC Kodak Photo bitmap
KFX Kofax Group IV fax
LBL dBASE label
LEG Legacy text
LIB Function library
LIT Microsoft Reader file
LOG Log file
LQT Liquid Audio
LSN Topic list (CDE)
LST List
LV LaserView Group IV
M1V MPEG file
M3U MPEG file
MAC MacPaint bitmap
MAK Visual Basic/MS C++ project
MAP Link editor map
MBX Mailbox (e-mail)
MCS MathCAD format
MCW Word for Macintosh document
MDB Access database
MDF Mircrosoft SQL server database
MET OS/2 Metafile
MEU Menu items
MDX dBASE IV multi-index
MID MIDI sound file
MME MIME-encoded file
MMF Microsoft mail file
MMM Macromind animation format
MOD Eudora script file
MOV QuickTime movie
MPA MPEG file
MP2 MPEG file
MP2V MPEG file
MP3 MPEG-1 Layer 3 audio
MPE MPEG file
MPEG MPEG file
MPG MPEG file
MPP Microsoft Project
MSG Message file
MSP M1V
MPEG Microsoft Paint bitmap
MUS Music
MVB Microsoft Multimedia Viewer
MYSAM table index
MYD MYSQL table data
============================================
In addition to this blog, I have authored the premiere book on Netiquette, " Netiquette IQ - A Comprehensive Guide to Improve, Enhance and Add Power to Your Email". You can view my profile, reviews of the book and content excerpts at:
www.amazon.com/author/paulbabicki
If you would like to listen to experts in all aspects of Netiquette and communication, try my radio show on BlogtalkRadio and an online newsletter via paper.li.I have established Netiquette discussion groups with Linkedin and Yahoo. I am also a member of the International Business Etiquette and Protocol Group and Minding Manners among others. I regularly consult for the Gerson Lehrman Group, a worldwide network of subject matter experts and I have been contributing to the blogs Everything Email and emailmonday . My work has appeared in numerous publications and I have presented to groups such as The Breakfast Club of NJ Rider University and PSG of Mercer County, NJ.
Great Reasons for Purchasing Netiquette IQ
===========================================
MUS Music
MVB Microsoft Multimedia Viewer
MYSAM table index
MYD MYSQL table data
============================================
In addition to this blog, I have authored the premiere book on Netiquette, " Netiquette IQ - A Comprehensive Guide to Improve, Enhance and Add Power to Your Email". You can view my profile, reviews of the book and content excerpts at:
www.amazon.com/author/paulbabicki
If you would like to listen to experts in all aspects of Netiquette and communication, try my radio show on BlogtalkRadio and an online newsletter via paper.li.I have established Netiquette discussion groups with Linkedin and Yahoo. I am also a member of the International Business Etiquette and Protocol Group and Minding Manners among others. I regularly consult for the Gerson Lehrman Group, a worldwide network of subject matter experts and I have been contributing to the blogs Everything Email and emailmonday . My work has appeared in numerous publications and I have presented to groups such as The Breakfast Club of NJ Rider University and PSG of Mercer County, NJ.
Great Reasons for Purchasing Netiquette IQ
· Get more email opens. Improve 100% or more.
· Receive more responses, interviews, appointments, prospects and sales.
· Be better understood.
· Eliminate indecision.
· Avoid being spammed 100% or more.
· Have recipient finish reading your email content.
· Save time by reducing questions.
· Increase your level of clarity.
· Improve you time management with your email.
· Have quick access to a wealth of relevant email information.
Enjoy most of what you need for email in a single book.===========================================
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