Help Combining back ups from diffferent devices

[old_and_thick]

Firstly Hello, be gentle with me I am old and thick!

Ok its probably been asked many times before, but is there a way of combining wifi login details from different devices that are rooted or not.
Basically I've got an old phone, new phone and tab that all have various wifi logins that I use and I want them on one device. Backing up with Google has never worked for me for wifi logins, but has for some contacts.

The devices are:
Samsung Ace 2 GT-18160 running 4.1.2 (rooted)
Samsung Galaxy Note 10.1 2014 edition SM-P600 running 4.4.2 (rooted)
LG G3 LG-D855 running 5.0 (not rooted)

Ideally I want to backup the Note up and factory reset it as I’m having lots of issues with it at the moment (freezing, apps stopping working on sd card and on internal memory etc.) and combine the wifi logins from all 3 devices onto the LG and the Note.

Thanks for any advice or links to advice that you can give.

 

[funkylogik]

Tbh I can't remember (at login) if you're asked what device you want to restore the backup from.
I guess it's a yes or no kind of thing so on harm trying?

 

[funkylogik]

Or you could look for an app that backs up wifi logins to sd card or even the cloud

 

[old_and_thick]

Or you could look for an app that backs up wifi logins to sd card or even the cloud

Ive looked at a couple but i cant see a way of combining them, its just back up each device as a separate file and then choose one to restore