You are downloading the Mr. Elephant + Mr. Mouse XAP file v220.127.116.11 for Windows Phone. Mr. Elephant + Mr. Mouse is a free and useful Kids & Family app: "Mr. Elephant & Mr. Mouse is a delightful interactive storybook that hits all the right notes"148Apps - 4.5 stars"Mr. Elephant & ... You can now download the offline XAP file to install & try it.
Download Locations for Mr. Elephant + Mr. Mouse 18.104.22.168 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Mr. Elephant + Mr. Mouse XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.