/* sas program to create an ascii data file */
/* to be read into limdep                   */
libname ssd '/pathname/';
filename out '/pathname/test.raw';
data temp;
 set ssd.filename;
 file out;
 put var1 var2 var3 var4 var5 var6 var7 var8 var9 var10
     var11 var12 var13 var14 var15 var16 var17 var18;
run;