You can do File Opening via Wizard window or Main menu ('0'-'File'-'Open...'). In Main menu after selecting 'Open...' there will be menu with formats: BMP,BMX,BM16x64,GIF,WBMP,???,??? with alpha,??? to clipboard. In Wizard window these item will be as 'Open BMP','Open GIF' e.t.c.  24bpp mode only formats ???,??? with alpha and ??? to clipboard are available for opening.