awk '	
		{OFS=","};
		$1~/^[***]/{next}
		$1~/^[A-Z]/{next}
               $1~/^--/{next}
		{
     		printf "%4s,%4s,%3s,%13s,%5s,%10s,%5s,%10s,%-3s,%12s,%-3s,%10s\n",
     				$1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12
               }
' input.txt > output.csv

##</code><code>##

VOL TEST @VCC= 4.5V, VIL=2V, VIH=5.5V
5    796    6   533.0 mV,RNG1   60.00 mA,M100                           
5    801        493.0 m                             0      500.0 m      
5    815    8   431.0 mV,RNG1   60.00 mA,M100                           
5    820        391.0 m                             0      500.0 m 

##</code><code>##

5, 796,  6,        523.0,mV,RNG1,     60.00,mA,M100,          
5, 801,483.0,            m,    0,     500.0,    m,          ,   ,  <-the row closed ranks some how.      
5, 815,  8,        418.5,mV,RNG1,     60.00,mA,M100,     
5, 820,378.5,            m,    0,     500.0,    m,          ,   ,