Box Service Account files cannot be accessed from Admin or Standard user using box.com

Hi 

We are integrating box with our custom build software from where user uploads file. We are using Service Account to upload.

It works fine and we can upload file. 
However we cannot see those files from box.com when login as admin or other user.

Is there a way admin can view Service account uploaded files from box.com?

If so how?

Thanks

Mahatab