I received a couple of JPEG images in an e-mail attachment that I saved in My Documents. When I tried to rename these files (change the file name extension), I got a warning saying that a change of name might make the file unusable. Is there a way round this which will allow me to rename the files and open them immediately with a double or a right click ?
Yes, you can rename the extension - but make sure you don't use an existing extension 'name' or that WILL cause problems.
The next time that you double click on the icon - or call up 'open' you will be told the extension is not recognisable. Select the correct program from the available list and then make sure that the 'always use...' is checked.
Note that changing the name of the file extension does not change the nature of the file .. ie. it will still be a jpeg. You can change it from jpeg into many other file types but not in the way you are trying.
Thanks Chris: The files I'm talking about have names like G2. 24-09-2003 - 0739A-jpg This sort of "name" isn't handy enough to identify which image is present. I wanted to give it a "user-friendly" name. I have done what you suggested and can open immediately in Windows Pictures & Fax Viewer but still can't give the file the name I want.