Or you acn just save it as all files and add the extension of the file you want it to be saved as. Lets say i weas to save a file named 'fire' then i say save as and i choose save as all files then were it asks for the name I would type in fire.(here would got the extention of the file type).So if I wanted to save it as a RAW file I would type the save as"fire.raw"