You are downloading the Maps for Pokemon Go XAP file v1.0.4.0 for Windows Phone. Maps for Pokemon Go is a free Travel App: With this maps you can get pokemons in Pokemon GO App even. You can now download the offline XAP package file to install & try it.
Download Locations for Maps for Pokemon Go 1.0.4.0 XAP file
Package File
Please Click Here > to retrieve available package files for Maps for Pokemon Go.
Please be aware that the Maps for Pokemon Go XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about Maps for Pokemon Go or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Maps for Pokemon Go XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.