You say that your computer won't recongnize them and they won't show up when saving. Do you mean the files don't show up in the list of files in your save dialog? If that's the case, only files that match the extension listed in the save dialog are shown. To see all .art files in the save dialog, type <i>*.art</i> into the space where you type in the file name and hit enter. This will show you all files that end in .art. Similarly, if you want to see all files, you can type <i>*.*</i> or <i>*</i>.