Writing a struct to a designated XLS sheet.

I have been able to write a struct to an xls file using export() but I have not been able to specify a sheet name for it to write to. first, is there an easy way to do that? if not then this brings me to use xlswrite() but i have a hard time organizing my data in a usable format for this function. My struct looks like this:

Data = struct('Activity', activityData, 'Radar', uutData, 'TimeElapsed', timeElapsed, 'TestPoint1', testPoint1, 'TestPoint2', testPoint2);

activityData and uutData is a different size of characters and testPoint1 and testPoint2 and time Elapsed are doubles. All have the same number of rows so this works as a struct. but to put it in a usable format for xlswrite() i had to use cellstr() for each of the character arrays becuase i got vertCat errors when performing this line: Data ={'Activity ', activityData; 'Radar ' ,uutData; 'TimeElaps ', timeElapsed;'TestPoint1', testPoint1;'TestPoint2',testPoint2};

This works and i get: Data = 'Activity ' 'Radar ' 'TimeElaps ' 'TestPoint1' 'TestPoint2' {500x1 cell} {500x1 cell} [500x1 double] [500x1 double] [500x1 double]

My problem is when i use: xlswrite('test.xls',Data, tempDate);

i don't get anything from whats inside the {500x1 cell}. How can i get this in my data in the file?