I'm still learning SAS but this should work.
data test_table;
input A $6. B $2. C $2. D $2. E 2. F $2. G $4. H $2. I 4. J 4. K $2.;
datalines;
WCM2B W C M 2 B Z.G 2 18.4 10.7 g
WCM2B W C M 2 B Z.G 2 17.6 10.8 g
WCM2B W C M 2 B Z.G 2 20.1 12.1 g
;run;
The data test_table; makes the table name, the input is the column name followed by number of spaces, then datalines is your data.