Graphs may be saved in three formats.
Metafile formats have advantages over Bitmap formats in that they use less memory and can be resized. Metafiles store the drawing elements in the file. Bitmaps store the individual points. The Enhanced Metafile has support for more features than the Metafile. These files are useful for inserting into a word processor or presentation package. Experiment to see which format works best for your application.