Please drop only atomic part of MOPAC file.

Ex. Acetone (Please copy and paste to above Text Area)

C 0.000000 1 0.000000 1 0.000000 1 0 0 0
H 1.091499 1 0.000000 1 0.000000 1 1 0 0
H 1.091464 1 109.252989 1 0.000000 1 1 2 0
H 1.091464 1 109.252989 1 240.525240 1 1 2 3
C 1.340000 1 109.686614 1 120.262620 1 1 2 3
C 1.420000 1 120.000283 1 0.000000 1 5 1 2
H 1.091499 1 109.686702 1 179.999912 1 6 5 1
H 1.091464 1 109.687363 1 299.998092 1 6 5 1
H 1.091464 1 109.687363 1 60.002037 1 6 5 1
O 1.200000 1 120.000283 1 179.999912 1 5 1 2