Migrating DUMP file of 4.2 into latest version (1 reply)

Hi guys
I have found some posting related to that but this is problem in my case to follow upgrade step by step. I have DUMP file from old version.
Is there any conversion rutine to prepare it for new version?
I have more then 4MB file and it will be problem to rewrite it by hand.

Thanks for any hint

Petr