I have recovered data from my local storage. The most valuable for me was to recover the private gpg key. I have found it in raw data files, I did delimitation based on the headers and footers. Now I have two separate *.key files with private key files content. How can I use it to rebuild my gpg keys, which I can use in Enigmail?
You could first get your public key from your private key like this:
$ gpg --import private.key
$ gpg --export $ID > public.key
Where you can determine the $ID of your key as follows:
$ gpg --list-keys
Afterwards you can import your key pair into Enigmail via File → Import Keys From File (as described in the Enigmail Wiki ).