Please follow these steps:

1- Go to WordPress tool options.

2- Install the importer plugin.

3- Browse the data.xml file already included in your downloaded theme package.

4- Check the option import the data and install..

5- Process it.

6- Go to Theme options.

7- Click on Import default settings button.

8- Go to Theme options-> Home page settings-> Slider settings

9- Save it

10- Install the plugin "Revolution Slider" . NOTE :alert already occur for the installation, on the top corner of the window