Excel 2007 : Opening Excel file after chosing specific answer in drop down list

Hello Guys,

Basically in one of my spreadsheets I have a drop down list with a simple yes and no answer. What I am looking for is when somebody selects "yes", another created excel documents loads up.

I can not seem to do this.

I have attached a blank file to show more. The purple box is where "yes" would be selected. I have also attached a second Excel document I would like loading up when "yes" is selected.

Thanks for any help.