Groove agent 5 cannot load new kit that I made

What I did :
recorded cajon sounds with 3 mics.
mixed the 3 tracks to 1 audio track
cut out 5 sounds from the mixed audio track
assigned the 5 sounds to a newly created kit in GA5
named the new kit " Cajon kit "
saved the Cajon kit and samples
forgot to write down where he new cajon kit was saved
searched my computer and found the file path
I cannot load that cajon kit in GA5 , or don’t know how to do it, the " Load kit " command only lets me load the standard libraries and kits not the customised new kit.
How do I create a proper library to contain my own drumkits
How can I import or load the cajon kit into GA5 ?