Restore last session - NOT working - How to open the LDB files?

Windows crashed and when I rebooted, “Restore” pop-up in the upper right corner. Clicked on it, but nothing happened… I had weeks of work and research, a lot of tabs divided on multiple windows.
I know this could be tracked down thru “History” manually, but some of the tabs were actually weeks old and I have visited thousands of sites since.
When searching for an answer this seems to popup quite often:

“To ensure that Brave opens (or asks you to open) your previous tabs, check Settings --> On Startup and ensure that Continue where you left off is selected here”
THIS IS SELECTED.
and
NO, the tabs didnt show up on “Recently Closed” when clicking on History in the upper right corner.

I copied the files in %appdata% so I got the LDB Files. But how do I open .LDB files i Brave Browser?
This could save me many hours of work! ^^

[Version 1.0.1 Chromium: 78.0.3904.108 (Official Build) (64-bit)]