Many windows phone not support share it so I personally suggested to use Xender Basically xender is use to transfer the data from one mob. To other so its a fastest medium to transfer the data generally speed is 4-5 mb.
Last 3 years I m using this app because in windowsphone many files have hig memory so bluetooth speed is very slow so u cant transfer data by bluetooth .
Firstly you have to create a group and join all your friends who wnts data and snd them
Speed is more good thn other mobile and easy to use its speed around 4mb.
I suggest you guyz its awesome app for data transfer so jst go on Window Store and download and try it
Thanks