Unable to change file extension windows xp

It is the simple method and you can change file type by playing little with folder options. You can also change file type without disturbing your windows default folder options using this free software.

Changing file extension may be irreversible some time so your should be careful in doing this task and you should do it only in emergencies. Changing File extension using folder options It is the simple method and you can change file type by playing little with folder options.

Now you can change the file type by just renaming a file. When we browse to the file it looks like this:. You'll notice that the file does not appear to have an extension—it's just called MyDocument.

That's because in this example Windows is set to hide extension names. Uncheck the box titled "Hide extensions for known file types" like so:. Right-click the file name and select Rename or left-click and hold down the button for one second. Enter the new extension like so:. After entering the new extension, hit the Enter return key.

Windows will give you a warning that the file may not work properly. This is quite safe—remember that you can restore the original extension if anything goes wrong. It's also possible that you might get another message telling you that the file is "read-only". In this case either say yes to turning off read-only, or right-click the file, select Properties and uncheck the Read-only box.

If you do not have permission to change the file extension, you may have to login as Administrator. Another option is to make a copy of the file, rename the copy and then delete the original. Note: Windows treats file extensions as case-insensitive, i.