You are downloading the Metro Commander AppX file v220.127.116.11 for Windows Phone. Metro Commander is a free and useful Productivity app: Metro Commander is an orthodox file manager that allows you to manage your files and folders from within the Modern Windows UI interface.Easily ... You can now download the offline AppX file to install & try it.
Download Locations for Metro Commander 18.104.22.168 AppX file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline AppX File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Metro Commander AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.