Extension

File Extensions

Zipped File

Document /Spreadsheet Files

7z — 7-Zip compressed file

.xl - Excel Spreadsheet

gzip (.gz) — Compressed file
.tar.gz, .tgz — gzipped tar file

.xlr - Works Spreadsheet
.xlsx - Microsoft Excel Open XML Spreadsheet

jar — ZIP file with manifest for use with Java applications
.log - Log File

RAR Rar Archive (.rar) — for multiple file archive (rar to
.r01-.r99 to s01 and so on)

.odt - OpenDocument Text Document

zip — popular compression format

.pages - Pages Document
.doc - Microsoft Word Document

Desktop publishing

.docx - Microsoft Word Open XML Document

.indd - Adobe InDesign

.tex - LaTeX Source Document

.psd - Adobe Photoshop

.wps - Microsoft Works Word Processor Document

.pdf - Adobe Acrobat or Adobe Reader

.msg - Outlook Mail Message

.qxd - QuarkXPress

.rtf - Rich Text Format File

Audio Files

.txt -

Plain Text File

.aif

.vcf -

vCard File

-

Audio Interchange File Format

.mpa -

MPEG-2 Audio File

.dat -

Data File

.ra -

Real Audio File

.pptx -

.iff -

Interchange File Format

.sdf -

Standard Data File

.csv -

Comma Seperated Values File

.wav -

WAVE Audio File

PowerPoint Open XML Presentation

.wma -

Windows Media Audio File

.xml -

XML File

.mp3 -

MP3 Audio File

.pps -

PowerPoint Slide Show

.ppt -

PowerPoint Presentation

Database Files
Image Files
.mdf - Microsoft SQL Server Database
.gif

- Graphical Interchange Format File

.sql - bundled SQL queries
.jpg - JPEG Image
.pdb - Program Database
.bmp - Bitmap Image File
.dbf - Database File
.psd

- Adobe Photoshop Document

.accdb - Access 2007 Database File
.png - Portable Network Graphic
.db

- Database File

.sql - Structured Query Language Data File
.mdb - Microsoft Access Database

.jpg - JPEG Image (Full form is Joint Photographic
Experts Group)

File Extensions

Video Files

Executable Files

.avi - Audio Video Interleave File

.exe - Windows Executable File

.3gp - 3GPP Multimedia File

.bat - DOS Batch File

.flv - Flash Video File
.mpg - MPEG Video File
.vob - DVD Video Object File
.mp4 - MPEG-4 Video File
.3g2 - 3GPP2 Multimedia File
.m4v - iTunes Video File
.wmv - Windows Media Video File
.swf - ShockWave Flash
Executable Files
.exe - Windows Executable File
.bat - DOS Batch File

Programe/Code Files
.cgi - Common Gateway Interface Script
.vb - VBScript File
.cs - C Sharp file
.jar - Java Archive File
.bat - DOS Batch File
.aspx - Asp.net Extension
.asp - Active Server Page
.php - PHP Source Code File
.cpp
.c

Programe/Code Files
.cgi - Common Gateway Interface Script
.vb - VBScript File
.cs - C Sharp file
.jar - Java Archive File
.bat - DOS Batch File
.aspx - Asp.net Extension
.asp - Active Server Page
.php - PHP Source Code File
.cpp
.c

- C++ Source Code File
- C/C++ Source Code File

- C++ Source Code File
- C/C++ Source Code File