A file extension is the last (usually 3) letters after the full stop. These letters define what application the file was written for e.g.
filename.doc = a Microsoft Word file
filename.mp3 = a mp3 audio file
filename.exe = an executable computer program
filename.pages = an apple pages file
filename.jpeg = a picture file
and so on.
Hope this helps,
SysEx.
find more on http://filext.com/alphalist.php?extstart=%5EA
Computers use file extensions to determine a file's type.
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No, folders usually do not have file extensions, but they could have if you like. Usually only files have extensions, to indicate the contents of the file.
its an extension for the file name which tells about the file type. but I just have a query, why most of the extensions are three lettered
File extensions tell us what kind of file it is.For example, a .pdf extension tells us that it is an Adobe Acrobat file.Files with the extensions of .jpg, .jpeg, .png, and .bmt are all picture files. (This is not an extensive list of picture files, just an example).Other types of files like .doc, .dot, .dotx, .docx, are Word files. There are many more file extensions for that.Powerpoint files have extensions like .ppt and .pptx.Windows media files have extensions like .wmv.Every software program has its own extensions that identify what it is.In Windows Explorer (or Apple equivalent), you can organize your files by file type if you're looking for a specific type of file. It's also really helpful if you're tracking statistics on file types and usage, or finding a file that you need to use again.The sort by file type feature is very handy when you have a high volume of files in a directory and you're looking for a document of a specific type.If you don't know where you placed your file, you can do a global search on the file type (if you know it) and your computer will give you search results showing only the files with that extension.
asp.net - microsoft's sharepoint server programming language has several file extensions, depending on the type of file:.asp and .aspx - the actual pages you type in the address bar.armx.ashx.asmx.axd.asax.webpart.dtc
There are no set file extensions for an ASCII text file, however one that is commonly used is .txt
Most viruses tend to be in in file that needs to be executed, favourites are type .exe or.scn file extensions.
Windows hides file extensions in File Explorer by default for known file types to simplify the user experience and reduce clutter. This setting can be adjusted in the Folder Options menu, where users can choose to show file extensions for all files. The option is typically turned on for security reasons, as displaying extensions can help users identify potentially harmful files. To view file extensions, users can enable the "File name extensions" checkbox in the "View" tab of the Ribbon in File Explorer.
All the .somethingortheother things like .jpeg or .pdf. It basically tells you what type of file it is.
Unsupported file types are file extensions that Windows does not know what to do with. This means that there is no program installed on the computer associated with a particular file type. To open an unsupported file type you must first install the program that the file uses to work with it.