File extensions
basically let you know what type of information is contained in a particular
file. For example a note .pad file has the .txt extension. This means it is a
text file. The .jpeg or sometimes the .jpg is a file extension for a certain
type of picture. The file extension can also mean that the file has a different
attribute to another file. For you can have the same picture with a .bmp file
extension or a .jpeg file extension. However if it was a .jpeg file the same picture
would be a smaller file size than the
.bmp file.
Here are some other examples of file
extensions.
- .exe (An
executable file, usually the file that starts a program.)
- .pdf
(Portable Document Format, is a file format created by Adobe Systems. Most
office documents come in .pdf file format.)
- .zip/.rar
(These could be any file but they have been compressed and packed away to
a smaller size. When unpacked or unzipped it will become what it was
originally.)
- .wav/ .mp3
(Music files)
- .jpg/.gif/.bmp
(Picture file formats)
By default, file extensions are
hidden to the computer user. Therefore to see file extensions on your computer
you must follow these steps:
To show or unhide file extensions:
1.
Open any folder on
your computer.
2.
Choose Tools from the
menu above.
3.
Choose Folder Options
from the menu.
4.
Click the View tab.
5.
Uncheck Hide extensions for
known file types.
6. Click OK.
Cause of this transfer you can read at this link
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