Merge a Facebook profile and page

Hello everyone.

I just got a new job and I will have to take care of the company's Facebook page. And the problem is that I know absolutely nothing about it (I've never had a personal account).

The company created a Facebook profile in 2011 and also created a Page later, and my managers would like me to merge the two. If possible, while keeping the posts and the friends.

Thanks in advance for your help.