About File extension

Wiki:
http://en.wikipedia.org/wiki/Filename_extension[^]

hi friend......

before explaining about file extension its good to know 1st about a File..

File-
A file is a collection of letters, numbers and special characters: it may be a program, a database, a dissertation, a reading list, a simple letter etc.

now what is a file extension-

a person belongs to a address.......same a file belongs to a reference that gives it a shape, a name, a well known address that actually called file extension...


in other way--

is the suffix at the end of a filename, which indicates what kind of file it is.


want to more go throw this link...

http://www.fileinfo.com/help/file_extension[^]

Happy to help

Quote:

A filename extension is a suffix (separated from the base filename by a dot) to the name of a computer file applied to indicate the encoding (file format) of its contents or usage. Examples of filename extensions are .png, .jpeg, .exe, .dmg and .txt.

Some file systems limit the length of the extension (such as the FAT file system (without Long filename support) not allowing more than three characters) while others (such as NTFS) do not. Unix filesystems accept the separator dot as a legal character.

try to refer below link:
Filename Extension[^]

File extension is something what you dont know. . . . .:P