There are two options:
First - To transfer a file (image/document), locate the file you want to send, tap on the share icon at the top right corner and Select XShare.

Second - To share any files (Image, video, Application or document) Simply open the Xshare App, Click on Send Files, Locate the files you want to share, Select all of them. Click Confirm at the bottom right corner of your Smartphone screen. Then the receiving device should scan the QR code begin the transfer process.

Receiving a File
There are two options:
First - Scan the QR code which appears on the Senders Phone or selects “Search Nearby” to scan for the sender.

In case the recipient does not have the Xshare app, the sender can share the App via Bluetooth to the recipient’s phone (Find the 'Share the app option'' when you open the app).

Access received files
Tap on the icon in the extreme top right corner to view the files received. The files are classified according to their types.
http://infinix.club/ng/forum/352/1181754