I have found a bug in XNVIEW, 
not allowing me to open & display a black/white SUN raster file,
possibly due to the fact that is has strange dimensions:
its width is 22368 yet its heigth is only 6 pixels. 
Paint Shop Pro does show the image,
so I think it is some kind of limitation of XNVIEW (1.96.1)
René
			
			
									
						
										
						unable to open SUN raster file
Re: unable to open SUN raster file
never known how to send data to you,
this way should work also ...
http://members.home.nl/ramekers/G30464.ras
Xnview 1.96 says: Sun Raster : Bad picture's size !
René
			
			
									
						
										
						this way should work also ...
http://members.home.nl/ramekers/G30464.ras
Xnview 1.96 says: Sun Raster : Bad picture's size !
René
Re: unable to open SUN raster file
I get the same behaviour as OP. Irfanview displays it properly.
			
			
									
						
							Intel i7 5960X
Gigabye GA-X99-Gaming 5
8 GB DDR4 (2100)
GeForce GTX 970 (Gigabyte)
			
						Gigabye GA-X99-Gaming 5
8 GB DDR4 (2100)
GeForce GTX 970 (Gigabyte)