File1
-----
X  Y  Category1 Category2 Value1 Value2 Value3 Result 
2  -9 1.0       2.0       1.1e3  1.234  -0.003 PASS   

File2
-----
X  Y  Category2 Category1 Value3 Value1 Value2        
2  -9 1         1         -0.003 1.1e3  1.2345 FAIL

##</code><code>##

...other code omitted...
$data1{"$x,$y}{$colnames[$colnum]} = $linedata[$colnum];