File+Extensions


 * File Name Extensions** toc

This page is devoted to a listing with brief explanation of the most common file types and their compatibility across operating systems and devices. You will each be assigned a number of these to research. You will edit this page and add the necessary information for your file types to create a valuable resource for this class.

|| [|2] || iPod || [|1] || [|2] [|3] || PNG images also allow the colors in the image to fade from opaque to transparent and are now supported by most Web browsers. ||= Windows/Mac || [|1] [|2] || Found conflicting info - one site stated it is supported by both platforms - Windows Office for Mac? || [|1] [|2][|3] ||
 * < ** File Type or **
 * Extension ** ||= ** Description ** ||= ** Operating System **
 * (Mac/Windows) or Device ** || ** Source ** ||
 * ==Video == ||  ||=   || 
 * .3g2 || 3G stands for third generation, a generic wireless industry term for high-speed mobile data delivery over mobileular networks. 3G networks allow users to send and receive bandwidth-intensive information such as video, high quality audio and web data on-demand, virtually anytime and anywhere. It is for use on 3G mobile phones. ||= Windows/Mac || [|1][|2] ||
 * .3gp || This file extension is the third generation video standard. It combines mp3, mp4, 3gpp, 3g3p and 3g2. It is used with mobile phones, and stores video stream and audio stream. ||= Windows/ Mac || [|1][|2] ||
 * .avi || Audio Video Interweave is a multimedia container format introduced by Microsoft. Contains both audio and video data that allows for synchronous audio with video playback; Similar to Quicktime ||= Windows/Mac || [|1] [|2] ||
 * .flv || .flv is a format used to deliver FLASH video over the internet using Adobe Flash Player (versions 6-10). YouTube, Google Video and Yahoo! Video all use the .flv file format. ||= Windows/Maz || [|1] ||
 * .m4v || MPEG-4 file extension used for videos downloaded from the Apple iTunes store; includes music videos, TV episodes, and full-length movies; similar to a .mp4 file, but may be copy-protected using Apple's FairPlay copyright protection. ||= Windows/Mac || [|1] [|2] ||
 * .mp4 || Diverse file to use. It is used to store digital audio and video streams. It also allows for storage of data, i.e. subtitles and still images. Format for streaming over the internet. This format is identical to QuickTime MOV format. Used for audio books, podcasts, etc. ||= Windows/Mac || [|1]
 * .mkv || This is the Matroska video format. From the Russian //matryoshka// meaning "nesting doll". It is an open source file format allowing complete movies or CD's to be stored in one file v. one file for each track. .mka is the audio format. ||= Windows/Mac || [|1] [|2] ||
 * .mov || **QuickTime** (.mov) is a [|multimedia framework] (developed by [|Apple Inc]) that contains one or more tracks, each of which stores a particular type of data: audio, video, effects, or text ||= Windows/Mac || [|1] [|2] ||
 * .mpg || A Moving Picture Experts Group (mpg) file is a file that is used to enable the public to download movies easily. The audio and video in this type of file is compressed to make this process easier. (Matthew) ||= Windows/Mac || [|1] ||
 * .wmv || Windows Media Video - video played by Windows Media Player and some 3rd party players like [|VLC] and [|WinAMP]. To play these files on a Mac one must download and install the free [|Flip4Mac] player that installs as a plugin to QuickTime player or use [|VLC]. ||= Windows/*Mac || [|1] [|2] ||
 * ==Audio == ||  ||=   ||   ||
 * .mp3 || MP3 is short for MPEG-1 Audio Layer 3. It is a music file is a digital audio encoding format using a form of lossy data compression .It a compressed version of an original audio file. The compression works by reducing accuracy of certain parts of sound that are deemed beyond the auditory resolution ability of most people. Most popular file for personal music players. ||= Windows/Mac || [|1],[|2] ||
 * .wav || Short for Waveform; an audio format for storing audio on PCs; Clase to IFF and AIFF used with Amiga and Macintosh ||= Windows/Mac/Amiga || [|1] ||
 * .aiff || Audio Interchange File Format. A professional level non-compressed and lossless format resulting in no reduction in quality. As a result files can be very large (10Gb per minute). Used mainly for high quality audio sampling and instrument information (MIDI). ||= Mac || [|1] [|2] [|3] ||
 * .ogg || This file is a compressed audio file that uses ogg Vorbis compression. It is similar to an .MP3 file but has better sound quality. Ogg is the name of Xiph.org's container format for audio, video and metadata. Vorbis is the name of an audio compression format. ||= Windows/Mac || [|1][|2] ||
 * .aac || This file is called advanced audio coding and is a compressed audio file similar to a [|.MP3] file, but offers several performance improvements. This format maintains quality nearly indistinguishable from the original audio source. ||= Windows/MacOs/Linux || [|1] ||
 * .m4a || An audio file that uses MPEG-4 audio compression; uses the same compression as an .mp4 video file, but does not contain a video track. These audio files include copyright protection, such as those sold from the iTunes Music Store. ||= Windows/Mac || [|1] [|2] ||
 * .m4b || An audio file within MPEG-4 format. The m4b was designed specifically for audio books. The m4b allows a book to be paused at any point then resumes at the same point. ||= Window/Mac
 * .m4b || An audio file within MPEG-4 format. The m4b was designed specifically for audio books. The m4b allows a book to be paused at any point then resumes at the same point. ||= Window/Mac
 * ==Documents == ||  ||=   ||   ||
 * .pdf || this stands for Portable Document Format. A .pdf is a file format developed by Adobe as a means of distributing compact, platform-independent documents. It is superficially similar to HTML ; a PDF document may contain images and text, as well as hyperlinks . E ach document is self-contained, packing text, graphics, and fonts into a single file. ||= Windows/Mac with a pdf plug-in such as Adobe Viewer or Reader || [|1][|2] ||
 * .doc || Pre-Office '07 (Windows) '08 (Mac) Microsoft Word document format. [|OpenOffice] and [|GoogleDocs] also incorporate this format. ||= Windows/Mac ||  ||
 * .docx || Microsoft Word 2007 (Win) or 2008 (Mac) file format. Will NOT open on previous versions of MS Word without converter. ||= Windows 2007/Mac 2008 or older with converter ||  ||
 * .ppt || A pre-Office '07 (Windows) '08 (Mac) Microsoft PowerPoint file ||= Windows/Mac ||  ||
 * .pptx || An open xml PowerPoint file generated by **MS Office 2007.** It cannot be opened directly by MS Office 2003-4 or older versions of Office without the download and install of a converter (part of Office update now) ||= Windows Office 2007/Mac Office 2008 or with [|converter]([|osx)] || [|1] [|2] [|3] ||
 * .xls || Pre-Office '07 (Windows) '08 (Mac) Microsoft Excel spreadsheet document format. [|OpenOffice] and [|GoogleDocs] also incorporate this format. ||=  ||   ||
 * .xlsx || Microsoft Office Excel 2007 (win) and 2008 (mac) workbook file extension. As with .pptx and .docx, .xlsx will not open in older Office versions without a converter. || Windows Office 2007/Mac Office 2008 or with [|converter]([|osx)] || [|1] ||
 * .zip || Single files, sometimes called archives that contain one or more compressed files. Makes it easy to transport, e-mail and download and keep related files together ||= Windows/Mac/Unix || [|1] ||
 * .rtf || Rich Text File - a cross-platform document format developed my Microsoft. It can be opened by virtually any text editor. It retains basic text formatting (bold, italic, font, image) which can be lost, as some formatting can be influenced by version and software. ||  || [|1] [|2] ||
 * .txt || A *.txt file is a text file that will open with any program that is designated as a text editing program. These programs (such as Notepad) rely on ASCII code with no fiile formatting and include only true type fonts. (Matthew) ||= Windows/Mac/Linux || [|1] [|2] ||
 * ==Images == ||  ||=   ||   ||
 * .bmp || The file extension .bmp stores color data for each pixel in the image without any compression. It allows for graphics to be stored in very high quality. ||= Windows/Mac || [|1][|2] ||
 * .gif || Stands for graphics interchange format. .gif is one of the two most common file formats for graphic images on the world wide web (the other is JPEG). It is data representation of a graphic image in binary form. ||= Windows/Mac || [|1]
 * .gif || Stands for graphics interchange format. .gif is one of the two most common file formats for graphic images on the world wide web (the other is JPEG). It is data representation of a graphic image in binary form. ||= Windows/Mac || [|1]
 * .jpg || Stands for //**J**oint **P**hotographic Experts **G**roup//.Commonly used for storing digital photos since the format supports up to 24-bit color; also a common format for publishing Web graphics. While JPEG images can contain colorful, high-resolution image data, it is a [|lossy] format, which means some quality is lost when the image is compressed. If the image is compressed too much, the graphics become noticeably "blocky" and some of the detail is lost. ||= Windows/Mac || [|1] [|2] [|3] ||
 * .png || Stands for 'Portable Network Graphic'. An image format that uses indexed colors and lossless compression (like a .gif file), but without copyright limitations; cannot be animated like a GIF image.
 * .tiff || A *.tiff image is a 'tagged image file format' which is lossless, which means that the image does not distort with change(s) in resolution. This type of file works best when using bitmap image files. (Matthew) ||= Windows/Mac || [|1] ||
 * .wmf || Stands for //**W**indows **M**eta**f**ile Format.// A [|graphics file format] on [|Microsoft Windows] systems intended to be portable between applications and may contain both vector and bitmap components; mostly replaced by more standard fomats such as [|.GIF] and [|.JPG] images. ||= Windows