Convert sfw to ras

What is the difference between .sfw and .ras?

Description: The SFW file format is associated with Seattle FilmWorks, a photography and film processing company. It was primarily used for images that were developed and digitized by Seattle FilmWorks. The format was proprietary, meaning it required specific software provided by Seattle FilmWorks or compatible third-party applications to view or convert the images. SFW files were popular in the late 1990s and early 2000s, especially among consumers who used Seattle FilmWorks' mail-order film developing service.; Originally used on the Sun Microsystems computers, RAS is a raster image format that displays bitmap images. It is popularly used for specific types of research projects and it can be developed in Unix OS as well. It supports 1 and 32-bits per pixel and used RLE compression codec.