New/Clean install of Prestashop how to move customer info/logins?

[h4mm1e]

Hi, 

 

I'm not sure if this is the correct section to be posting in or not but here goes....

 

I have a old version of prestashop 1.4.5.1 running for about 5 years now with a custom theme on it. I'd like to update and move to using a different theme. 

 

old prestashop is at www.mywebsite.com/myshop (example)

 

I have created a new install of prestashop 1.6.1.10 at www.mywebsite/newshop (example)

 

I have configured the theme and beginning to redo my product listings etc (they needed updating a rewriting anyway) 

 

My question is, How do I go about grabbing all previous customers data from www.mywebsite.com/myshop and adding it to www.mywebsite/newshop so that when I go live a customer returning to the site doesn't have to create a new account? 

 

I'm not so bothered about keeping previous purchase history etc but if that can be done too that'd be great.

 

 

I hope all of that makes sense, I have tried searching a lot for a way of doing this but I'm not really sure how to describe the process ! 

 

 

Thanks, 

 

Matt