FILES one at a time, 
      exercise the following loop. 
 
         #include &lt;stdio.h&gt;
         #include &lt;string.h&gt;
         #include &quot;SpiceUsr.h&quot;
             .
             .
             .
         #define FILSIZ          255
         
         SpiceBoolean            found;

         SpiceChar               file [ FILSIZ ];
         
         SpiceInt                handle;
         SpiceInt                i;
         SpiceInt                size;

 
         i = 0; 
 
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