How to open .MEMO files transferred from a Samsung S5 on a Samsung Note5?

[AC Question]

I have recently upgraded to the Note5.

I have over 100 important Notes (memos) saved in my SamsungS5.
I transferred a few to test, via Bluetooth, to my new Note5.
But it just won't open in my new phone!!!
The files are in a .MEMO format

It reads "Unable to find application to perform this action".
How do I open these notes?
Is there an app I can download?
I wouldn't mind a paid app either as long as you're sure it will work.

I already have the SNotes pre installed in this phone. That does not help either.

My notes are really important and I need them in my new phone.
I cannot keep carrying my old phone around.

All the answers are really appreciated

Thanks in advance.