MATLAB: How to fix this upper directory link

directoryfullfileMATLAB

File_W = fullfile(app.Path, '..', 'MyFolder', [fileName, '_myFormat_.xlsx']);
writetable(T1, File_W);
The above is my code to write my Excel file in a upper level directory (parallel with app.Path, in this case: /Voumes/DATA/ABC) named MyFolder. It works well. Here is the probelm. Now when I try to display 'File_W' in my uialert, it shows as the below:
/Volumes/DATA/ABC/../MyFolder
When it should be:
/Volumes/DATA/MyFolder
Is there a way I can fix it?
Thanks.

Best Answer

File_W = fullfile(app.Path, '..', 'MyFolder', [fileName, '_myFormat_.xlsx']);
writetable(T1, File_W);
a=dir(File_W);
namefolder=a(1).folder