Restore 'psa' database from backup

[AndyD]

My 'psa' database got corrupted and so I need to restore it. I have a backup from last night which I created using pleskbackup.

Is there a way I can either open the backup file to extract the database, or to restore the 'psa' database without touching the others?

Cheers

Edit:

If anyone else has this problem, I restored it from /var/lib/psa/dumps where there are daily backups taken.