You are downloading the Ninko+WP XAP file v10.0.0.0 for Windows Phone. Ninko+WP is a free and useful Utilities & Tools app: Note: This app will only work with Ninko branded devices. It will not work with conventional USB drives. This app also uses Ninko's own non-OTG ... You can now download the offline XAP file to install & try it.
Download Locations for Ninko+WP 10.0.0.0 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 Ninko+WP XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.