Hi @Luca D'Angelo,
I understand that you are facing trouble loading your '.csv' dataset in MATLAB. The dimension of the dataset is such that the first seven rows comprise of the headerline whereas the actual data begins from the 8th row. You also witness that importing the data into MATLAB does not even display the preview but throws an exception, "com.mathworks.jmi.MatlabException: Arrays have incompatible sizes for this operation."
I tried reproducing the issue on my end but I am able to load the excel file without any issues. The loaded table is in the same format where the first 7 rows has the headerline data and with same sparsity as available in dataset. You may prefer updating MATLAB to the latest version which includes various bug fixes and thereby allowing you to load the dataset without any issues. Once the data has been loaded into the MATLAB session you can use the "reshape" function to structure the matrix by explicitly specifying the dimension and achieving the goal of having the seven rows as single row headerline.
Please refer to the following MathWorks documentation link for more information on "reshape":
Hope this helps!
