A non perl solution if you the know the no.of.cols in File1:

$ for i in `cut -d" " -f1 f2.txt`; do R1=`grep -w ${i} f2.txt| cut -d"
+ " -f2-6` ; R2=`grep -w ${i} f1.txt `; printf "$R2 $R1\n"; done
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