It's hard to tell without more detail on the contents of result.xls_full_data. However, if your strings are nested in a cell inside a cell, xlswrite will overlook them. To be precise, consider the two different cell arrays below
X = [num2cell(rand(4,7)),{'red';'blue';'green';'yellow'}]
and
Y = [num2cell(rand(4,7)),{{'red'};{'blue'};{'green'};{'yellow'}}]
The difference between X and Y is that the cells containing strings in X are cells whose contents are strings, whereas the cells containing strings in Y are actually cells whose contents are cells whose contents are strings. (cell of cell of string)
If you attempt the following commands, you'll see that the strings in Y are not written to the mySecond.xls file.
xlswrite('myFirst.xls',X,1,'2');
xlswrite('mySecond.xls',Y,1,'2');
Perhaps this explains the behavior you're observing?
