Copy a NK2Edit Outlook Autofill database from Windows 11 to Windows

Source PC - Windows 11, Destination PC Windows 10. Both using Outlook 365. All OS's and Apps latest versions.

I had to restore my wife's Windows 10 based PC and while I was able to secure all data before doing so, one database I was unable to save (or forgot to do so) was the Outlook autocomplete file Stream_Autocomplete......
As the PC I use and this restored PC more or less share the same list of email contacts, it should be possible to copy my Stream_Autocomplete file to hers.
I have a copy of NK2Edit which could be used or I could simply replace her new Stream_Autocomplete file with mine, but both methods are giving me problems.
Am I trying something not possible? Is there a better way?

Solved the difficulty. My wife's PC's Windows Explorer had by default system folders and files hidden. Once I changed that I was able to transfer file I needed.

I appreciate that the problem is solved but thought you might still like to note the MS explanation of the location of Outlook configuration files.
Find and transfer Outlook data files from one computer to another - MSSupport

That article used to explicitly identify the NK2 file you were interested in but they've dropped that now.
This might mean that, for newer Outlook versions, the data is included within the Outlook.pst file itself. That is definitely what has happened to some other configuration files such as Rules.rwz.

MS said:

Outlook Contacts AutoComplete (.nk2)
AutoComplete is a feature which displays suggestions for names and e-mail addresses as you begin to type them. These suggestions are possible matches from a list of names and e-mail addresses that you have typed before, known as the AutoComplete name list.

C:\Users\%UserName%\AppData\Roaming\Microsoft\Outlook\Outlook.NK2

All the best,
Denis