Lesson 2 Understanding File Formats

Lesson 2 – Understanding File Formats

Walk-in Assignment – Handout Answer Key + Reference

What type of file has the following extension?

.aif .mov .ai .eps .psd .docx .fnt .gz .htm .ini .jav .mid .pdf .mp4 .mp3 .tif .csv .gif .js .png .doc .rtf .jpg .xml .txt .otf .app .sit .fla .pkg .html .css .wav .xls .zip .tmp .ico .indd .prproj .ttf .tar .sql .asp .avi .bak .cgi .dat .exe .mpg .odf .pl .ppt .tar.gz .swf

Write the extension in the appropriate box (some may be in more than one):

IMAGES AND VECTORS MUSIC AND VIDEO / CODE MEDIA .pdf .eps .html .js .aif .wav .swf .tif .png .gif .css .txt .htm .mov .mv4 .mp3 .jpg .ico .asp .jav .avi .mid .mpg .bak .cgi .pl

WORD PROCESSING FONTS SPREADSHEET

.pdf .txt .docx .ttf .otf .xls

.doc .rtf .fnt

APPLICATION COMPRESSION DATA FILE

.ai .psd .ppt .pkg .sit .csv .dat

.pdf .app .fla .zip .tar .sql .odf .xml

.indd .prproj .exe .tar.gz .gz .tmp .ini

Extension Type Characteristics .ai Application Adobe Illustrator .aif Audio Audio Interchange File .app Application .asp Code / web page active server page – used to code Web pages that connect to databases .avi video Audio/Video Interleaved – movie clip – open with mplayer, IE, or Navigator with plugin .bak Code/ backup Used by many applications – often created file automatically .cgi Code Common Gateway Interface – used to exchange information with a server (often used with Perl) .css Code / style plain text file containing web page style sheet preferences .csv data Comma Separated Value file – a way of presenting tabular data in a text file – usually viewed in MS Excel. .dat data file Used by several applications. Not to be opened directly. .doc / .docx Word Microsoft Word file / Microsoft Word Processing/ XML Format Document file document .eps Graphic File Encapsulated Postscript File – can contain vectors and pixel based graphics .exe application self-extracting or executable file – run by double- clicking in the Windows operating system .fla Native Macromedia Flash animation file – requires Application Shockwave /media .fnt font Font file .gif image graphic in GIF format – open in web browser or graphics program .gz application compressed archive file created by Gzip in the UNIX operating system .htm / .html text file hypertext document – open in a web browser – edit in any word-processor or text editor .ico Windows icon Open with an icon editor .indd Application Adobe InDesign .ini — Initialization file .jav Java cross platform programming language used to create complex interactive forms and special effects .jpg image Graphic in JPEG format (Joint Photographic Experts Group) View with web browser or image editing program .js JavaScript part of Web page used to create interactive effects such as mouse roll-overs and pop-up boxes .mid audio audio file in MIDI format .mov video QuickTime movie – view using IE or Netscape using plug-in .mp3 audio Audio file in MP3 format – CD-quality sound, with 10x compression .mp4 audio a digital multimedia container format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. .mpg movie Video movie in MPEG format (Motion Picture Experts Group) .odf data Open Document Formula. Spreadsheet formula used by OpenOffice.org and StarOffice Calc; allows the results of calculations performed within the spreadsheet to be automatically entered into one or more cells; based on the OASIS OpenDocument standard and formatted in XML. .otf font Open Type Font (Template (Microsoft Outlook) .pdf application Portable Document Format – requires Adobe Acrobat reader .pkg application The PKG files contain compressed installer files that are used to install Mac software applications onto a user's hard drive. .pl application Perl source file – text file, editable in any text editor .png image graphic in Portable Network Graphics format – can work on all platforms .prproj application Adobe Premier Project .psd application Adobe Photoshop .ppt application Microsoft PowerPoint file – used for creating slides and overhead presentations .rtf application Rich Text Format – word-processor file with formatting codes .sit Compression SIT is a compressed archive file Used by the Smith Micro Stuff-IT expander compression/decompression (codec) utility for the Mac and Windows operating systems .sql Database Structured Query Language file format written in ASCII language .swf media Macromedia Shockwave Flash animation movie .tar application file archive created in the Unix operating system .tar.gz application .tar archive compressed by Gzip .tif image Tagged Image File format – graphic file – editable in graphics program .tmp — temporary file – used by many programs .ttf — True Type Font file .txt text contains only ASCII code – also called ‘text file’ – editable in any text editor .wav audio Sound file in Waveform format .xls application Microsoft Excel worksheet file .xml Web page extensible markup language – a plain text file for web pages .zip application compressed file – open with WinZip or PKZip

References: http://www.mantex.co.uk/2009/10/31/common-file-types/ Wikipedia.com