Opening external hard drive

i am waiting for a long time since i connected my WD external hard drive passport essential…please can anyone help me to open it…

Open like in viewing the files on the drive?

This article will help:

How to use a WD external hard drive with your computer

If by open you mean removing from the enclosure, we do not recommend nor we provide instructions for that.

Removing the drive from the enclosure voids the Warranty.