Dave said:
Hi people, all my File extensions are showing on my files, .exe, .
avi, .rtf, .doc etc ect.
They were always there. By default, Windows turns off displaying the file
extensions (a very poor choice, as far as I'm concerned) and you apparently
chose the option to turn that display back on (which is a good thing to do).
i cant remame tham becaus a message comes up
saying it will becom unstable and turns into a .file that has to be
manually opened with its program.
Despite the warning, you can rename whatever you want. It doesn't hurt to
rename the part of the file of the file name before the dot, but only rarely
does it make any sense to change the part after the dot (the extension).
That's because Windows uses the extension to determine what program to open
it with. So if you double-click a file called something.doc, Windows will
open it with Microsoft Word. If you rename it to something-else.doc, there's
no problem; Windows will still open it with Word. But if you rename it to
something.xxx, Windows has no idea what to open it with.