How to transfer and view MS-word, excel and power-point files iPhone

This is general question asked that how to transfer MS office files to iphon and how to view them easily,

there are many ways to answer this question but the most simple way is , Email your files to your self then open these files on your iphone , to view these file on iphone the best available software which support it is open office

it can open and brows all the MS Office files and you can read it on the Go