Copying Mailspring to another PC

Hi everyone,

I do have a problem regarding a mailspring installation whom I don’t have access anymore.
Basically i don’t have access to the mailspring installation anymore (due to the user being kicket out from the domain, but i can access the files of it (with another local acocunt).
Is there any chance that by copypaste files on a new installation, i can retain almost all of my stuff (contacts/mail) ?
I tried already by coping the appdata/roaming stuff on a new one, but it doesn’t work at this time.

someone got some idea on how to do that?