File Formats
When using a PC all files require a file extension at the end of the name of the file. For example if you have created a file in QuarkXPress you need to have .qxd at the end of the file name: Example.qxd If you are working on a Macintosh these extensions are not required unless you plan on opening the file on a PC as well.
These file extensions tell the PC how to interpret the file. Extensions let the computer know what program the file was created in or if it is a graphic file how to read the image properly.
Below are some of the common file extensions used for files. This only shows a small
number of the file extensions used. It is always a good practice to inform the recipient of which program and which version of the program that the file was created in. By doing this you can be sure that the file will be useable on the recipients end.
Can't find the file format your looking for in the list below?Visit Every File Format In The World By Clicking Here.
| TERM | DEFINITION |
| .ai | Adobe Illustrator file |
| .asp | Active Server Pages. Pages created with ASP are dynamic and add interactivity to the web site. |
| .avi | Movie files for use with the Windows Media Player. |
| .bak | Backup files. This extension is commonly used in Windows as applications will make backup copies of documents with this extension. |
| .bat | Batch files mainly used in DOS. |
| .bmp | Bit-mapped files used for graphics such as Windows wallpaper. |
| .cal | Files used with the Windows Calendar program. |
| .cdr | CorelDRAW native format (Vector file). |
| .cfg | Files used to store information for MIDI components. |
| .dat | Data files used by programs to store information. |
| .dll | Dynamic Link Library files that help Windows program perform smoothly. |
| .doc | Word processing document files most commonly associated with Microsoft Word. |
| .drv | Device driver files that are used by hardware components to run smoothly. |
| .eps | Files containing information designed for PostScript printers. |
| .exe | Program files that actually run a program. Commonly associated with Windows applications. |
| .fla | Macromedia Flash source file |
| .gif | Graphics and picture files in a compressed format. |
| .html | Website pages. HTML is an acronym for Hypertext Markup Language. Also website pages can end in .htm. |
| .ico | Files representing icons such as Windows. |
| .inf | Information files for programs during the installation process. |
| .ist | Adobe ImageStyler file |
| .jpeg | High-quality picture and image files. Also in .jpg extension. |
| .js | JavaScript code files |
| .mdb | Microsoft Access database file |
| .mid | Sound files that contain musical notes. Also known as MIDI files. |
| .net | Network files |
| Files that are created by Adobe Acrobat. | |
| .pm65 | PageMaker 6.5 Document |
| .ps | Postscript File text/graphics (ASCII) |
| .psd | Photoshop document. |
| .qxd | QuarkXPress Document |
| .reg | Registrey key that contains licensing info to legalize the installation of an application. |
| .scr | Windows screen savers |
| .sea | Macintosh self extracting file. |
| .sit | The Macintosh version of a compressed file. |
| .tif | Tagged Image File format (bitmap/graphic) |
| .ttf | True Type Font |
| .txt | Text files created by a word processing program or Windows Notepad. |
| .wav | Sound files that are commonly associated with Windows Media Player. |
| .xls | Microsoft Excel document file |
| .zip | Files that have been compressed by a program such as WinZip or PKZip. |

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