game maker studio local save path on mobiles

I have an app and I transferred a file to it using TCP. I then want to save this file on the device in a folder that can be accessed using an app like a "file manager" or when browsing the phone when connected to the PC via USB.

So we have the file to write using file_bin_write(path)

but we need the path:

if os_type==os_windows 
 path=string_replace(environment_get_variable("APPDATA"),"Roaming","Local")+game_project_name+""+name;
  else
  if os_type==os_winphone
    path="PhoneDownloads"+name;//set path to save
  else
   path=working_directory+""+name;//set path to save