Can't found my files that was create by my programme c++

Can't found my files that was create by my programme c++

I m working in an application C++ in Qt , and with this application i
create files ( xml , c sv ... ),so when i build my programme in Qt it work
normal and i can found my files that i create. Now after finishing my
project , i create a setup for it !! The problem is when i use the
application that ( the setup one ), and i save a file !! i can't found it
when i use windows explorer !! but when i try to open it from my programme
i found it !!!!!!!
and here is some screen shoot to get the problem .
![This is what i get from my application and u can see the files][1]
http://img4.hostingpics.net/pics/748949921.png
![And this is what i get when i try to open my files from windows][2]
http://img4.hostingpics.net/pics/691349672.png