I know this thread is old but I hope it's still going to help someone:
I think this is an shorter solution (with the constraint that each struct field can contain scalar,arrays or strings):
%assume that your struct array is named data
temp_table = struct2table(data);
writetable(temp_table,'data.csv')
Now your struct array is stored in the data.csv file. The column names are the field names of a struct and the rows are the different single-structs of your struct-array
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