Unable to perform assignment because dot indexing is not supported for variables of this type

I can't solve my error.what should I do for running my code?

%% Load Data

data=xlsread('location','sheet'); %%measured values(decimal number)

Targets=data(1:203,7);

Inputs=data(1:203,1:6);

%%getting error here

data.Inputs=Inputs;

data.Targets=Targets;

Targets=Targets(:,1);

%%Unable to perform assignment because dot indexing is not supported for variables of this type.

Answer 1

[VBBV]

d.Inputs=Inputs; 
Targets=Targets(:,1);       
    d.Targets=Targets;

[VBBV]

Use a different name other than data since it's a numeric array and not a structure. Only variables(fields) inside structures are accessed in that format

Answer 2

[Star Strider]

The xlsread function returns the first output as a matrix of double values, as described in the documentation section on num, and not a structure.

Refer to ‘Inputs’ and ‘Targets’ as separate matrices, not fields of a structure (that does not exist).