File Extensions 101

what

where

advanced

examples

history

security

quiz

 

Examples:

Below are some basic file extensions and a little information about the extension name. There are thousands of extensions - so I'm not trying to list them all.

.doc Word document (usually)
.pdf portable document format
.ppt PowerPoint document
.xls Excel document
.gif picture - Graphics Interchange Format
.txt text file
.jpg jpeg - Joint Photographic Experts Group
.png picture - Portable Network Graphics
.exe executable file
.htm web page - hyper text markup language

Have an extension that you need to lookup some information on? Check out this site - FileInfo.net - the definitive file extensions resource.

 

 

updated
07/05/06

2237
INTEK.net / Jim Tracy