write from matlab to excel three matrix of different type in one row

peace upon you

How can I write from Matlab to an Excel file Three arrays, the first containing a number, the second containing a string, and the third containing several numbers,in one row.

a=[1];

b=['aaa'];

c=[1 2 3 4];

the result must be write in excel as follow:-

1 aaa 1 2 3 4