If it is the standard Graphisoft library that you are using, then the file path shouldn't be a problem so long as it is saved close to the root directory of your C-drive.
Extracting the LCF file will just allow you to see and manipulate if necessary the folder structure of the library.
Extracting (and creating) adn LCF file can be done from the library manager in Archicad.
You then load the extracted library instaed of the LCF library.
LCF libraries do load a little faster, so unless you need to edit the library don't extract it.
But as I said there should be no need to do this if it is a standard Graphisoft library.
If the library works in the French version (which I assume it does otherwise there would have been may complaints), then I would assume it would work in the English version as well.
If I get a chance later I will download the French version and see if I can load the library.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11