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List of common file extensions and their meanings

Some important and basic file extensions that candidates must know to get good marks in ibps and SBI po clerk exams from computer awareness section.File extensions are associated with each file they we create or work on. There can be different types of File extensions and they tell us about the type of the file we are using. File extensions were created in order to make the file unique in different domains if they have the same name. For example abc.doc and abc.ppt have the same file name “abc” but as their file extensions .doc and .ppt are different so that can exist on same folder with the different file extensions. They can be recognized separately like abc.doc is the word document file and abc.ppt is the Microsoft power point document. Those candidates who are preparing for the IBPS Clerk and PO examinations and other competitive exams must learn the basics of the file extensions and some important file extensions and type of file associated with them.

 Text Files:

.log                  –          Log File

.wpd                –          WordPerfect Document

.odt                  –          Open Document Text Document

.pages              –          Pages Document

.doc                 –          Microsoft Word Document

.docx               –          Microsoft Word Open XML Document

.tex                  –          LateX Source Document

.wps                 –          Microsoft Works Word Processor Document

.msg                 –          Outlook Mail Message

.rtf                   –          Rich Text Format File

.txt                   –          Plain Text File

 Data Files

.vcf                  –          vCard File

.dat                  –          Data File

.pptx                –          PowerPoint Open XML Presentation

.sdf                  –          Standard Data File

.tar                   –          Consolidated Unix File Archive

.csv                  –          Comma Seperated Values File

.xml                 –          XML File

.pps                  –          PowerPoint Slide Show

.ppt                  –          PowerPoint Presentation

 Audio Files

.aif                   –          Audio Interchange File Format

.mpa                –          MPEG-2 Audio File

.ra                    –          Real Audio File

.iff                   –          Interchange File Format

.wav                –          WAVE Audio File

.wma               –          Windows Media Audio File

.mp3                –          MP3 Audio File

 Video Files

.avi                  –          Audio Video Interleave File

.3gp                 –          3GPP Multimedia File

.flv                   –          Flash Video File

.mpg                –          MPEG Video File

.vob                 –          DVD Video Object File

.mp4                –          MPEG-4 Video File

.3g2                 –          3GPP2 Multimedia File

.m4v                –          iTunes Video File

.wmv               –          Windows Media Video File

 3D Image Files:

.max                –          3ds Max Scene File

.obj                  –          Wavefront 3D Object File

.3ds                 –          3D Studio Scene

.3dm                –          Rhino 3D Model

 Raster Image Files:

.gif                   –          Graphical Interchange Format File

.jpg                  –          JPEG Image

.bmp                –          Bitmap Image File

.psd                 –          Adobe Photoshop Document

.png                 –          Portable Network Graphic

 Spreadsheet Files:

.xls                   –          Excel Spreadsheet

.xlr                   –          Works Spreadsheet

.xlsx                 –          Microsoft Excel Open XML Spreadsheet

 Database Files

.pdb                 –          Program Database

.dbf                 –          Database File

.accdb              –          Access 2007 Database File

.db                   –          Database File

.sql                   –          Structured Query Language Data File

.mdb                –          Microsoft Access Database

 Executable Files

.cgi                  –          Common Gateway Interface Script

.com                –          DOS Command File

.vb                   –          VBScript File

.exe                  –          Windows Executable File

.jar                   –          Java Archive File

.bat                  –          DOS Batch File

 Web Files

.cer                  –          Internet Security Certificate

.css                  –          Cascading Style Sheet

.html                –          Hypertext Markup Language File

.js                     –          JavaScript File

.jsp                   –          Java Server Page

.htm                 –          Hypertext Markup Language File

.asp                  –          Active Server Page

.php                 –          PHP Source Code File

.xhtml              –          Extensible Hypertext Markup Language File

.rss                   –          Rich Site Summary

.aspx                –          Active Server Page Extended File

 Plugin Files

.plugin             –          Mac OS X Plug-in

.crx                  –          Chrome Extension

Developer Files

.cs                    –          Visual C# Source Code File

.cpp                 –          C++ Source Code File

.dtd                 –          Document Type Definition File

.c                     –          C/C++ Source Code File

.fla                   –          Adobe Flash Animation

.class                –          Java Class File

.java                 –          Java Source Code File

 Backup Files

.tmp                 –          Temporary File

.bak                 –          Backup File

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