You are downloading the File Manager Metro XAP file v188.8.131.52 for Windows Phone. File Manager Metro is a free and useful Music app: File Manager Metro is a very powerful app for windows phone. It can help you manage your folders and files. Below listed out the advantages ... You can now download the offline XAP file to install & try it.
Download Locations for File Manager Metro 184.108.40.206 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP 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 File Manager Metro XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.