Czuch: Can you not remember the file name you gave it when you exported it (i am guessing you did Export it lol).
If not then, click Start -----> Find -----> all files and folders ----->(now in box that says 'All or part of filename' enter) .LDIF ------> click Search
Hope fully that will find it. It should be a .LDIF as that is the default Thunderbird saves it as, and should be the only one you have
Hopefully when you know where it is open Thunderbird-----> Address Book -----> Tools -----> Import (then navigate to where you hopefully found the file)
(gem) Hvis du vil spille et spil med en modspiller som er på omtrent samme niveau kan du lave en invitation med et ønsket BKR-område. Da kan kun de spillere med den BKR se og acceptere invitationen. (Katechka) (vis alle tips)