CONVERT IMAGE FORMAT WITHOUT ANY INTERNET AND SOFTWARE

STEPS:
1. click on start menu
2. search for cmd.exe
3. copy the image that you want to
convert on desktop.
4. now name that image as (im)
5. check it's format by going into
it's properties.
6. write this command in
command prompt :
cd desktop
copy /b im.(original format) "fi.
(final format)"
for example : if i have a image
name as im and it's format is png. i
wants to convert it into ico format,
then i has to write this command
in command prompt :
cd desktop
copy/b im.png "fi.ico"
it's over, command prompt will
change it's format into specified
format and save the file on
desktop.