Multiple (same type) columns into one in Excel?

I have data that looks like this:

Top     %       Top     %       Top     %
99.2    99.0    81.4    66.0    77.9    33.0
90.1    98.0    81.4    65.0    77.7    32.0
89.4    97.0    81.2    64.0    77.6    31.0
88.4    96.0    81.1    63.0    77.4    30.0
87.9    95.0    81.0    62.0    77.3    29.0
87.3    94.0    80.9    61.0    77.2    28.0
86.9    93.0    80.7    60.0    77.0    27.0
86.4    92.0    80.6    59.0    76.9    26.0
86.1    91.0    80.5    58.0    76.7    25.0
85.6    90.0    80.4    57.0    76.4    24.0
85.2    89.0    80.3    56.0    76.3    23.0
84.9    88.0    80.2    55.0    76.2    22.0
84.8    87.0    80.1    54.0    76.1    21.0
84.5    86.0    80.0    53.0    75.7    20.0
84.3    85.0    79.9    52.0    75.5    19.0
84.1    84.0    79.8    51.0    75.2    18.0
83.9    83.0    79.7    50.0    75.0    17.0
83.7    82.0    79.6    49.0    74.8    16.0
83.4    81.0    79.5    48.0    74.5    15.0
83.4    80.0    79.4    47.0    74.1    14.0
83.2    79.0    79.3    46.0    73.8    13.0
83.0    78.0    79.2    45.0    73.6    12.0
82.9    77.0    79.1    44.0    73.4    11.0
82.7    76.0    79.0    43.0    72.9    10.0
82.5    75.0    78.9    42.0    72.6    9.0
82.4    74.0    78.8    41.0    72.1    8.0
82.2    73.0    78.6    40.0    71.3    7.0
82.1    72.0    78.5    39.0    70.7    6.0
82.0    71.0    78.4    38.0    70.2    5.0
81.9    70.0    78.3    37.0    69.6    4.0
81.7    69.0    78.2    36.0    68.6    3.0
81.6    68.0    78.1    35.0    65.7    2.0
81.5    67.0    78.0    34.0    0.0     1.0

The columns are split like this for viewability from the generated report, but is there a quick way to "merge" these 6 columns into 2 columns? There are about 50 blocks of data like this so I really don't want to just manually copy and paste.

I can fumble my way through VBA well enough if there is an efficient VBA solution instead of a formulaic one.