how to rename a sheet in a generated excel file?

Dear all, I have this code to generate an excel file, the outputs will be in sheet number 2, how can I please rename the sheet to be called (Months)?

Z={'Case1' 'Case2' 'Case3'};
D=[A1, A2, A3];
b=arrayfun(@(D) sprintf('%10.2f',D),D,'un',0);
filename = 'Data.xlsx';
W = table();..., 'VariableNames', varNames);
    uc = num2cell(b, 1);
W = table(uc{:}, 'VariableNames', Z)
writetable(W,filename,'Sheet',2,'Range','A1')