Plot graph from excel file. Help me !!!

I have data in excel file. I would like to plot with x axis is column A, y is BUNG2 and BUNG4. In the x axis, I only want to stick JAN, FEB, MARCH, APRIL, MARCH. Any help would be appreciated, thank you.

   Date Time    BUNG2   BUNG4
1-08-1982 0:0   25.00   25.00
1-08-1982 1:0   24.44   24.95
1-08-1982 2:0   23.54   24.86
1-08-1982 3:0   22.45   24.72
1-08-1982 4:0   21.27   24.56
1-08-1982 5:0   20.09   24.36
1-08-1982 6:0   18.94   24.14
1-08-1982 7:0   17.86    23.9
1-08-1982 8:0   16.86   23.64
1-08-1982 9:0   15.95   23.37
1-08-1982 10:   15.14   23.08
1-08-1982 11:   14.41   22.78
1-08-1982 12:   13.77   22.47
1-08-1982 13:   13.21   22.16
1-08-1982 14:   12.72   21.84
1-08-1982 15:    12.3   21.52
1-08-1982 16:   11.93   21.19
1-08-1982 17:   11.62   20.87
1-08-1982 18:   11.35   20.54
1-08-1982 19:   11.12   20.22
1-08-1982 20:   10.92   19.89
1-08-1982 21:   10.75   19.58
1-08-1982 22:   10.61   19.26
1-08-1982 23:   10.49   18.95
2-08-1982 0:0   10.39   18.64
2-08-1982 1:0    10.3   18.34
2-08-1982 2:0   10.23   18.05
2-08-1982 3:0   10.16   17.76
2-08-1982 4:0   10.11   17.47
2-08-1982 5:0   10.06   17.19
2-08-1982 6:0   10.02   16.92
2-08-1982 7:0    9.99   16.66
2-08-1982 8:0    9.96    16.4
2-08-1982 9:0    9.94   16.15
2-08-1982 10:    9.92   15.91
2-08-1982 11:     9.9   15.67
2-08-1982 12:    9.88   15.44
2-08-1982 13:    9.87   15.22
2-08-1982 14:    9.85      15
2-08-1982 15:    9.84   14.79
2-08-1982 16:    9.83   14.59
2-08-1982 17:    9.82   14.39
2-08-1982 18:    9.81    14.2
2-08-1982 19:    9.81   14.02
2-08-1982 20:     9.8   13.84
2-08-1982 21:    9.79   13.67
2-08-1982 22:    9.79    13.5
2-08-1982 23:    9.78   13.34
3-08-1982 0:0    9.77   13.19
3-08-1982 1:0    9.77   13.04
3-08-1982 2:0    9.76    12.9
3-08-1982 3:0    9.76   12.76
3-08-1982 4:0    9.75   12.62
3-08-1982 5:0    9.75    12.5
3-08-1982 6:0    9.74   12.37
3-08-1982 7:0    9.74   12.25
3-08-1982 8:0    9.73   12.14
3-08-1982 9:0    9.73   12.03
3-08-1982 10:    9.72   11.92
3-08-1982 11:    9.72   11.82
3-08-1982 12:    9.71   11.72
3-08-1982 13:    9.71   11.63
3-08-1982 14:     9.7   11.54
3-08-1982 15:     9.7   11.45
3-08-1982 16:    9.69   11.37
3-08-1982 17:    9.69   11.29
3-08-1982 18:    9.68   11.21
3-08-1982 19:    9.68   11.14
3-08-1982 20:    9.67   11.07
3-08-1982 21:    9.67      11
3-08-1982 22:    9.66   10.93
3-08-1982 23:    9.66   10.87
4-08-1982 0:0    9.65   10.81
4-08-1982 1:0    9.65   10.75
4-08-1982 2:0    9.64    10.7
4-08-1982 3:0    9.64   10.64
4-08-1982 4:0    9.63   10.59
4-08-1982 5:0    9.63   10.54
4-08-1982 6:0    9.62   10.49
4-08-1982 7:0    9.62   10.45
4-08-1982 8:0    9.61    10.4
4-08-1982 9:0    9.61   10.36
4-08-1982 10:     9.6   10.32
4-08-1982 11:     9.6   10.28
4-08-1982 12:    9.59   10.25
4-08-1982 13:    9.59   10.21
4-08-1982 14:    9.58   10.18
4-08-1982 15:    9.58   10.14
4-08-1982 16:    9.57   10.11
4-08-1982 17:    9.57   10.08
4-08-1982 18:    9.57   10.05
4-08-1982 19:    9.56   10.03
4-08-1982 20:    9.56      10
4-08-1982 21:    9.55    9.97
4-08-1982 22:    9.55    9.95
4-08-1982 23:    9.54    9.92
5-08-1982 0:0    9.54     9.9
5-08-1982 1:0    9.53    9.88
5-08-1982 2:0    9.53    9.86
5-08-1982 3:0    9.52    9.84
5-08-1982 4:0    9.52    9.82
5-08-1982 5:0    9.51     9.8
5-08-1982 6:0    9.51    9.78
5-08-1982 7:0     9.5    9.76
5-08-1982 8:0     9.5    9.74
5-08-1982 9:0    9.49    9.73
5-08-1982 10:    9.49    9.71
5-08-1982 11:    9.48    9.69
5-08-1982 12:    9.48    9.68
5-08-1982 13:    9.47    9.67
5-08-1982 14:    9.47    9.65
5-08-1982 15:    9.47    9.64
5-08-1982 16:    9.46    9.62
5-08-1982 17:    9.46    9.61
5-08-1982 18:    9.45     9.6
5-08-1982 19:    9.45    9.59
5-08-1982 20:    9.44    9.58
5-08-1982 21:    9.44    9.56
5-08-1982 22:    9.43    9.55
5-08-1982 23:    9.43    9.54