Saved emails need to be copied...HOW?

I have a problem with my speakers on a new HP laptop. HP says I must send in the computer for three weeks and they are going to wipe everything and reload my operating system. I have an external hard drive to copy everything, but it does not seem to copy my saved emails. Is there any way to copy my saved emails somewhere? I need to keep them!

eM Client stores “everything” in the database.
Database location is:
C:\Users\YourUsername\AppData\Roaming\eM Client
(or if you use XP, it’s C:\Document and Settings\YourUsername\Application Data\eM Client)