how to save scrrenshots to .jpeg format
 

Hello is where I way to change sh3 so what screenshots would be saved in .jpg or .jpeg format?

If your computer runs on Windows you can use the simple built-in system called paint. Simply right-click on the file and the list will have a selection that says "Open with..." Select 'Paint' and the Windows Paint program will open. At the top left Click on 'File' and select 'Save As'. It will give you several options, one of which is 'JPEG Picture'. Click that and it will let you save the file as a jpeg.