File extensions tell the computer what kind of program was used to create it, and are usually three letters. Common file extensions are .txt .doc .wps
minimum three and maximum four
The file extension tells about the type of file, with the extension three letters. For Eg:- *.txt -- text file *.exe-- executable file
No of leters 3-4. Meaning - relates to the application that can open the file and process the content.
The extension. It tells Windows what kind of a file it is. For example, a file with the ".doc" extension is a Microsoft Word Document.
XLS is the shorthand for Microsoft Excel file extension. A file extension is the group of letters following a period in a file name, denoting what kind of file it is.
Well, it depends on the length of the file-extension. If you settle for letters and numbers, it will be 36n, where n is the length.PS: your question has nothing to do with C or C++ or programming at all.
A text file, usually with numbers, letters, and/or simple graphics.
What is the file extension What is the file extension
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 extension tells you more about the file type. Example a .pdf indicates that the file is a 'Print Document Format' file which can be opend using Adobe Acrobat or Adobe Reader. Look at the sites below for a list of file extensions:http://www.extensionpedia.com/html/list.htmlhttp://www.fileinfo.net/http://www.filext.com/The usual term used is "file extension" or sometimes simply "extension". Not all operating systems use extensions, and of those which do, not all of them are limited to precisely three letters.
file extension for video is 101
.html, .php, or .htm