| Icon |
Extension |
Meaning |
Description |
 |
.ai |
Adobe Illustrator |
Useful for vector illustration where the image can be scaled to infinity without the loss of quality. |
 |
.asp/.aspx
* |
Active Server Page/.Net |
A web server extension by Microsoft enabling web pages to be dynamically generated from the server. |
 |
.avi |
Audio Video Interleave |
A sound and video file format on Windows operating systems. |
 |
.css |
Cascading Style Sheet |
A language used to describe how a HTML document should be formatted. |
 |
.doc |
Document |
Microsoft Word Files used for document creation & formatting. |
 |
.exe |
Executable Program |
Used to run a program on the Windows operating system. |
 |
.eps |
Encapsulated Postscript |
Useful for vector illustration where the image can be scaled to infinity without the loss of quality. Most logos are created in this format. |
 |
.fla |
Flash |
The format used to create and edit swf files that are presented on the web. Useful for animation and interactivity. |
 |
.gif |
Graphical Interchange Format |
A graphic file format that presents images using a break down of colors to compress the image. Best used for illustrations, logos and solid shapes. This format can provide small file sized animations known as animated gifs. A gif file also supports transparency. |
 |
.hqx |
binary-to-hexadecimal |
Used to run a program on the Macintosh operating system. |
 |
.htm/.html
* |
Hypertext Markup Language |
Standard file type for presenting a web page. Based around the premise of linking one page to another known as hyperlinks. |
 |
.indd |
InDesign Document |
Page design software. InDesign enables print production workflow's and a fluid creative environment for designing professional layouts with sophisticated graphics and typography. |
 |
.jpeg/.jpg |
Joint Photographic Experts Group |
Widely used on the Internet to display photographs. Can be compressed however pixel quality will degrade each time the format is saved. (Lossy Format). Does not support transparency. |
 |
.mov |
Apple Quicktime Movie File |
File format used to present video and sound. |
 |
.mpeg |
Moving Picture Experts Group |
The digital standard for compression and storage of motion video. |
 |
.otf |
Open Type Font |
This is a vector font file type used for installing and manipulating fonts and can be used on Macintosh and Windows operating systems. |
 |
.pdf |
Portable Document Format |
The PDF format has become a standard for document transfer between different computer platforms. A PDF file retains formatting for the file being transmitted and are becoming the standard for providing high resolution files to printers. |
 |
.php |
PHP Script |
These are script files used on a server to generate HTML files sent to a browser. |
 |
.png |
Portable Network Graphics |
Similar to a Jpeg file as it is used to present images however a png supports transparency. |
 |
.psd |
Photoshop Document |
This format is used to create and edit images in Adobe Photoshop. |
 |
.sit |
Stuff -It |
A sit file is a compressed archive. It can contain only one file or many files in multiple directories on the Macintosh operating system. |
 |
.swf |
Shock Wave Format |
Created mainly by Flash, these files are used to present animations and interactive experiences embedded within a web page document. |
 |
.tif |
Tagged Image Format |
Useful for high resolution printing such as photos and images for print. Does not loose quality over time from re-saving (not a lossy format). |
 |
.ttf |
True Type Font |
This is a vector font file used for installing and manipulating fonts. Will work on Windows operating systems only. |
 |
.wav |
Wave Format |
An audio format used to convert analogue to digital sound. |
 |
.zip |
Compressed Archive File |
A zip file is a compressed archive. It can contain only one file or many files in multiple directories used on the Windows operating system. |
Please Note: Icon graphics may differ on your computer due to different user preferences and operating systems. Icons are indicative only.
* Internet Explorer has been used for this icon as it is the most widely used internet browser and thus representative of a typical web page. This could be replaced with any other internet browser icon to symbolise a web page.
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