How do i get columns of excel files into pop up menu?

Hi team, I am facing problem in getting columns of excel file into popup menu. I used the following code.

 filename=uigetfile({'*.xls';'*.csv'});
 handles.filename=filename;
set(handles.editpath,'String',filename)
 guidata(hObject, handles)
 setpopupmenuString(handles.popupmenucycle,eventdata,handles)
 function setpopupmenuString(hObject,eventdata,handles)
 filename=handles.filename;
 [numbers,colNames]=xlsread(filename);
 set(hObject,'String',colNames);

 The popup menu is displaying values of 1st column alone with its header. Someone please help me in solving this problem.

Answer 1

[Walter Roberson]

It would be better if you used

set(hObject, 'String', colNames(1,:) );

Just after you have done the set() in your function, please add

class(colNames)
size(colNames)

and tell us what it displays. If it shows the class as being cell, please also show

colNames{1,1}

[Radhika]

Thanks a ton Walter