Importing excel time data

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I am trying to read an excel file containg the date and time in the format "dd/mm/yyyy HH:MM:SS". (The excel contains eight columns [Date, Time, data1, data2, data3,data4,data5,data6,data7,data8])

I read the excel file with the code

opts = detectImportOptions("LW.xlsx");
T = readtable("LW.xlsx",opts)
T = 240×8 table
DateTimeTDHDNEGHZ_______________________________

    39083           0    22.7      0      0     0      0    155
    39083    0.041667    22.5      0      0     0      0    144
    39083    0.083333      22      0      0     0      0    132
    39083       0.125    21.8      0      0     0      0    118
    39083     0.16667    21.6      0      0     0      0    104
    39083     0.20833    21.7      7      0     0      7     91
    39083        0.25    22.2     81     59     2     84     77
    39083     0.29167    23.6    183    205     7    190     64
    39083     0.33333      25    311    319     0    311     51
    39083       0.375      26    457    324     0    457     39
    39083     0.41667      27    536    346     0    536     31
    39083     0.45833    27.6    566    362     0    566     28
    39083         0.5    27.6    506    276     0    506     32
    39083     0.54167    27.5    361    242     0    361     41
    39083     0.58333    27.2    313    210     0    313     53
    39083       0.625    26.6    209    173    12    221     65
T = table2timetable(T)
Error using table2timetable
Input table must contain datetime or duration vector for row times.
Time =datetime(T.Time, "ConverFrom", "datenum", "Format", "HH:mm:ss");
Date =datetime(T.Date, "ConverFrom", "datenum", "Format", "dd/MM/yyyy");
TD = mergevars(T,{"Date","Time"},...
    "NewVariableName","DateTime", "MergeAsTable",true);