Does the following help?
A = readtable("https://www.mathworks.com/matlabcentral/answers/uploaded_files/1069865/General_Prompt.xlsx");
head(A)
ans = 8×36 table
        MetricWireID                SurveyName           General_Prompt_SurveyStartedDate    General_Prompt_SurveyStartedTime    General_Prompt_SurveySubmittedDate    General_Prompt_SurveySubmittedTime    RightNowHowMuchDoYouFeel_Sad    RightNowHowMuchDoYouFeel_InAGoodMood    RightNowHowMuchDoYouFeel_ConnectedWithOthers    RightNowHowMuchDoYouFeel_PsychologicalEmotionalPain    RightNowHowMuchDoYouFeel_Bored    RightNowHowMuchDoYouFeel_LikeYouNeedToEscape    RightNowHowMuchDoYouFeel_AgitatedIrritated    RightNowHowMuchDoYouFeel_Worried    RightNowHowMuchDoYouFeel_Anxious    RightNowHowMuchDoYouFeel_Energetic    RightNowHowMuchDoYouFeel_Selfhatred    RightNowHowMuchDoYouFeel_Angry    RightNowHowMuchDoYouFeel_OnEdge    RightNowHowMuchDoYouFeel_Numb    RightNowHowMuchDoYouFeel_Grateful    RightNowHowMuchDoYouFeel_PhysicalPainOrDiscomfort    RightNowHowMuchDoYouFeel_Hopeless    RightNowHowMuchDoYouFeel_Lonely    RightNowHowMuchDoYouFeel_Humiliated    RightNowHowMuchDoYouFeel_DesireToAvoid    RightNowHowMuchDoYouFeel_UrgeToUseAlcohol    RightNowHowMuchDoYouFeel_UrgeToUseHeroinOrOpioids    RightNowHowMuchDoYouFeel_UrgeToUseCocaine    RightNowHowMuchDoYouFeel_UrgeToEatSomethingSweet    RightNowHowMuchDoYouFeel_UrgeToEatSomethingSavory    RightNowHowMuchDoYouFeel_UrgeToHurtYourself    RightNowHowMuchDoYouFeel_UrgeToDie    RightNowHowMuchDoYouFeel_UrgeToDoSomethingRiskyOrImpulsive    RightNowHowMuchDoYouFeel_NeedToBeWithFriendsOrFamily    RightNowIWouldBeAbleToEnjoyThingsThatIUsuallyLike
    _____________________    ________________________    ________________________________    ________________________________    __________________________________    __________________________________    ____________________________    ____________________________________    ____________________________________________    ___________________________________________________    ______________________________    ____________________________________________    __________________________________________    ________________________________    ________________________________    __________________________________    ___________________________________    ______________________________    _______________________________    _____________________________    _________________________________    _________________________________________________    _________________________________    _______________________________    ___________________________________    ______________________________________    _________________________________________    _________________________________________________    _________________________________________    ________________________________________________    _________________________________________________    ___________________________________________    __________________________________    __________________________________________________________    ____________________________________________________    _________________________________________________
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              09-Mar-2022                           0.57934                            09-Mar-2022                             0.58215                         {'50 - Maybe'}                            48                                          30                                               {'29'}                                         62                                       28                                           {'23'}                                     20                                  33                                   24                              {'23'        }                       {'15'        }                        {'14'}                            {'11'}                               36                                           14                                     {'20'        }                      {'43'        }                           {'17'}                                     67                                 {'3'             }                                     {'67'}                                     {'0 - Not at all'}                                       76                                                   39                                       {'1'             }                         {'4'             }                                {'2'             }                                                  1                                                    46                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              09-Mar-2022                           0.65731                            09-Mar-2022                             0.65907                         {'51'        }                           NaN                                          29                                               {'30'}                                         36                                       49                                           {'27'}                                     52                                  26                                   24                              {'55'        }                       {'34'        }                        {'25'}                            {'13'}                               16                                           55                                     {'33'        }                      {'50 - Maybe'}                           {'11'}                                     64                                 {'9'             }                                     {'67'}                                     {'3'             }                                       19                                                   24                                       {'3'             }                         {'4'             }                                {'5'             }                                                  3                                                    59                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              09-Mar-2022                           0.74525                            09-Mar-2022                             0.74794                         {'29'        }                            22                                          22                                               {'33'}                                         27                                       27                                           {'28'}                                     55                                  61                                   15                              {'17'        }                       {'24'        }                        {'19'}                            {'24'}                               18                                           61                                     {'26'        }                      {'19'        }                           {'20'}                                     67                                 {'5'             }                                     {'74'}                                     {'6'             }                                       18                                                   30                                       {'18'            }                         {'2'             }                                {'5'             }                                                  6                                                    47                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              10-Mar-2022                           0.60737                            10-Mar-2022                             0.60931                         {'38'        }                            35                                          30                                               {'22'}                                         15                                       16                                           {'24'}                                     28                                  24                                   32                              {'24'        }                       {'16'        }                        {'14'}                            {'14'}                               11                                           25                                     {'35'        }                      {'20'        }                           {'9' }                                     24                                 {'7'             }                                     {'63'}                                     {'0 - Not at all'}                                       21                                                   33                                       {'3'             }                         {'1'             }                                {'0 - Not at all'}                                                 51                                                    57                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              10-Mar-2022                           0.64112                            10-Mar-2022                             0.64244                         {'10'        }                            10                                           4                                               {'7' }                                         18                                       13                                           {'75'}                                     15                                  15                                   52                              {'14'        }                       {'74'        }                        {'27'}                            {'17'}                               13                                           51                                     {'50 - Maybe'}                      {'9'         }                           {'19'}                                     23                                 {'8'             }                                     {'73'}                                     {'0 - Not at all'}                                       45                                                   32                                       {'0 - Not at all'}                         {'0 - Not at all'}                                {'2'             }                                                NaN                                                    53                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              10-Mar-2022                           0.66376                            10-Mar-2022                             0.66542                         {'52'        }                            51                                          51                                               {'53'}                                         48                                       43                                           {'56'}                                     61                                  56                                   47                              {'50 - Maybe'}                       {'50 - Maybe'}                        {'48'}                            {'51'}                               46                                           49                                     {'42'        }                      {'39'        }                           {'35'}                                     25                                 {'4'             }                                     {'71'}                                     {'2'             }                                       66                                                   66                                       {'1'             }                         {'0 - Not at all'}                                {'31'            }                                                 63                                                    55                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              11-Mar-2022                           0.60443                            11-Mar-2022                             0.61084                         {'15'        }                            56                                          10                                               {'27'}                                         40                                        9                                           {'6' }                                     58                                  53                                   28                              {'7'         }                       {'15'        }                        {'15'}                            {'5' }                                5                                           41                                     {'28'        }                      {'18'        }                           {'15'}                                     20                                 {'0 - Not at all'}                                     {'70'}                                     {'1'             }                                       61                                                  NaN                                       {'0 - Not at all'}                         {'0 - Not at all'}                                {'1'             }                                                  6                                                    48                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              11-Mar-2022                           0.67159                            11-Mar-2022                             0.67269                         {'19'        }                            26                                          28                                               {'26'}                                         26                                       18                                           {'32'}                                     27                                  24                                   23                              {'24'        }                       {'29'        }                        {'22'}                            {'25'}                               25                                           19                                     {'21'        }                      {'21'        }                           {'24'}                                     23                                 {'21'            }                                     {'21'}                                     {'30'            }                                       28                                                   45                                       {'34'            }                         {'43'            }                                {'50 - Maybe'    }                                                 64                                                    41                        
for col = 7:size(A,2)  % from column 7 onwards
    x = A{:, col};
    if iscell(x)
        x = cellfun(@(v) sscanf(v, '%f'), x);
        A.(A.Properties.VariableNames{col}) = x;        
    end
end
A
A = 73×36 table
        MetricWireID                SurveyName           General_Prompt_SurveyStartedDate    General_Prompt_SurveyStartedTime    General_Prompt_SurveySubmittedDate    General_Prompt_SurveySubmittedTime    RightNowHowMuchDoYouFeel_Sad    RightNowHowMuchDoYouFeel_InAGoodMood    RightNowHowMuchDoYouFeel_ConnectedWithOthers    RightNowHowMuchDoYouFeel_PsychologicalEmotionalPain    RightNowHowMuchDoYouFeel_Bored    RightNowHowMuchDoYouFeel_LikeYouNeedToEscape    RightNowHowMuchDoYouFeel_AgitatedIrritated    RightNowHowMuchDoYouFeel_Worried    RightNowHowMuchDoYouFeel_Anxious    RightNowHowMuchDoYouFeel_Energetic    RightNowHowMuchDoYouFeel_Selfhatred    RightNowHowMuchDoYouFeel_Angry    RightNowHowMuchDoYouFeel_OnEdge    RightNowHowMuchDoYouFeel_Numb    RightNowHowMuchDoYouFeel_Grateful    RightNowHowMuchDoYouFeel_PhysicalPainOrDiscomfort    RightNowHowMuchDoYouFeel_Hopeless    RightNowHowMuchDoYouFeel_Lonely    RightNowHowMuchDoYouFeel_Humiliated    RightNowHowMuchDoYouFeel_DesireToAvoid    RightNowHowMuchDoYouFeel_UrgeToUseAlcohol    RightNowHowMuchDoYouFeel_UrgeToUseHeroinOrOpioids    RightNowHowMuchDoYouFeel_UrgeToUseCocaine    RightNowHowMuchDoYouFeel_UrgeToEatSomethingSweet    RightNowHowMuchDoYouFeel_UrgeToEatSomethingSavory    RightNowHowMuchDoYouFeel_UrgeToHurtYourself    RightNowHowMuchDoYouFeel_UrgeToDie    RightNowHowMuchDoYouFeel_UrgeToDoSomethingRiskyOrImpulsive    RightNowHowMuchDoYouFeel_NeedToBeWithFriendsOrFamily    RightNowIWouldBeAbleToEnjoyThingsThatIUsuallyLike
    _____________________    ________________________    ________________________________    ________________________________    __________________________________    __________________________________    ____________________________    ____________________________________    ____________________________________________    ___________________________________________________    ______________________________    ____________________________________________    __________________________________________    ________________________________    ________________________________    __________________________________    ___________________________________    ______________________________    _______________________________    _____________________________    _________________________________    _________________________________________________    _________________________________    _______________________________    ___________________________________    ______________________________________    _________________________________________    _________________________________________________    _________________________________________    ________________________________________________    _________________________________________________    ___________________________________________    __________________________________    __________________________________________________________    ____________________________________________________    _________________________________________________
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              09-Mar-2022                           0.57934                            09-Mar-2022                             0.58215                               50                                  48                                          30                                                 29                                           62                                       28                                             23                                       20                                  33                                   24                                    23                                   15                                14                                11                                 36                                           14                                           20                                  43                                   17                                       67                                          3                                               67                                                0                                               76                                                   39                                                1                                          4                                                 2                                                          1                                                    46                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              09-Mar-2022                           0.65731                            09-Mar-2022                             0.65907                               51                                 NaN                                          29                                                 30                                           36                                       49                                             27                                       52                                  26                                   24                                    55                                   34                                25                                13                                 16                                           55                                           33                                  50                                   11                                       64                                          9                                               67                                                3                                               19                                                   24                                                3                                          4                                                 5                                                          3                                                    59                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              09-Mar-2022                           0.74525                            09-Mar-2022                             0.74794                               29                                  22                                          22                                                 33                                           27                                       27                                             28                                       55                                  61                                   15                                    17                                   24                                19                                24                                 18                                           61                                           26                                  19                                   20                                       67                                          5                                               74                                                6                                               18                                                   30                                               18                                          2                                                 5                                                          6                                                    47                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              10-Mar-2022                           0.60737                            10-Mar-2022                             0.60931                               38                                  35                                          30                                                 22                                           15                                       16                                             24                                       28                                  24                                   32                                    24                                   16                                14                                14                                 11                                           25                                           35                                  20                                    9                                       24                                          7                                               63                                                0                                               21                                                   33                                                3                                          1                                                 0                                                         51                                                    57                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              10-Mar-2022                           0.64112                            10-Mar-2022                             0.64244                               10                                  10                                           4                                                  7                                           18                                       13                                             75                                       15                                  15                                   52                                    14                                   74                                27                                17                                 13                                           51                                           50                                   9                                   19                                       23                                          8                                               73                                                0                                               45                                                   32                                                0                                          0                                                 2                                                        NaN                                                    53                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              10-Mar-2022                           0.66376                            10-Mar-2022                             0.66542                               52                                  51                                          51                                                 53                                           48                                       43                                             56                                       61                                  56                                   47                                    50                                   50                                48                                51                                 46                                           49                                           42                                  39                                   35                                       25                                          4                                               71                                                2                                               66                                                   66                                                1                                          0                                                31                                                         63                                                    55                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              11-Mar-2022                           0.60443                            11-Mar-2022                             0.61084                               15                                  56                                          10                                                 27                                           40                                        9                                              6                                       58                                  53                                   28                                     7                                   15                                15                                 5                                  5                                           41                                           28                                  18                                   15                                       20                                          0                                               70                                                1                                               61                                                  NaN                                                0                                          0                                                 1                                                          6                                                    48                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              11-Mar-2022                           0.67159                            11-Mar-2022                             0.67269                               19                                  26                                          28                                                 26                                           26                                       18                                             32                                       27                                  24                                   23                                    24                                   29                                22                                25                                 25                                           19                                           21                                  21                                   24                                       23                                         21                                               21                                               30                                               28                                                   45                                               34                                         43                                                50                                                         64                                                    41                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              11-Mar-2022                           0.67733                            11-Mar-2022                             0.67868                               27                                  30                                          31                                                 36                                           31                                       31                                             29                                       22                                  35                                   35                                    35                                   37                                33                                37                                 35                                           41                                           50                                  49                                   56                                       52                                          1                                               72                                                1                                               34                                                   49                                                0                                          1                                                 4                                                         49                                                    50                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              12-Mar-2022                           0.52457                            12-Mar-2022                             0.52628                               21                                  27                                          39                                                 31                                           39                                       24                                             33                                       27                                  58                                   42                                     9                                   49                                25                                16                                 53                                           27                                           22                                  21                                   15                                        6                                          0                                               68                                                1                                               24                                                   36                                                2                                          1                                                 6                                                          9                                                    46                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              12-Mar-2022                           0.64763                            12-Mar-2022                             0.64926                               36                                  27                                          30                                                 27                                           27                                       27                                             38                                       29                                  35                                   35                                    29                                   34                                33                                32                                 32                                           27                                           29                                  41                                   32                                       39                                          3                                               58                                                1                                               49                                                   57                                                0                                          1                                                 2                                                         45                                                    38                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              12-Mar-2022                           0.69402                            12-Mar-2022                             0.69516                                6                                  24                                          39                                                  7                                            7                                       12                                              3                                       18                                 NaN                                   40                                    14                                   20                                15                                18                                 11                                           32                                           13                                   4                                    4                                        7                                          0                                               56                                                1                                                7                                                  NaN                                                1                                          4                                                 2                                                         20                                                    39                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              13-Mar-2022                           0.48693                            13-Mar-2022                             0.48904                               22                                  17                                          34                                                 39                                           38                                       41                                             57                                       56                                  47                                   19                                    41                                   31                                39                                46                                 39                                           49                                           47                                  53                                   61                                       61                                          3                                               55                                                6                                               56                                                   56                                                0                                          1                                                51                                                         57                                                    53                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              13-Mar-2022                           0.81632                            13-Mar-2022                             0.81744                               11                                  18                                          19                                                 36                                           17                                       45                                             34                                       42                                  45                                   45                                    23                                   46                                22                                45                                 55                                           42                                           48                                  50                                   45                                       40                                          4                                               61                                                1                                               43                                                   40                                                3                                          0                                                51                                                         31                                                    40                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              14-Mar-2022                           0.79081                            14-Mar-2022                             0.79255                               46                                  56                                          55                                                 45                                           55                                       52                                             54                                       56                                  57                                   59                                    58                                   56                                53                                56                                 58                                           62                                           43                                  34                                   33                                       37                                          4                                               54                                                2                                                5                                                   47                                                2                                          3                                                 2                                                         38                                                    44                        
    {'8as7da0s9d8a9sd8a'}    {'Questionnaire_Prompt'}              15-Mar-2022                           0.49403                            15-Mar-2022                             0.49538                               44                                  44                                          45                                                 41                                           47                                       38                                             41                                       45                                  29                                   40                                    36                                   33                                45                                28                                 33                                           36                                           26                                  16                                   27                                       28                                          1                                               47                                                4                                               43                                                   51                                                3                                          1                                                50                                                         46                                                    42                        


