Synopsis
		sfin info=y check=2. trail=y [

n1,n2,... are data dimensions
o1,o2,... are axis origins
d1,d2,... are axis sampling intervals
label1,label2,... are axis labels
unit1,unit2,... are axis units

Parameters
		float check=2. Portion of the data (in Mb) to check for zero values.   bool info=y [y/n] If n, only display the name of the data file.   bool trail=y [y/n] If n, skip trailing dimensions of one