i want to extract the detailed ledger from a backup file but my subscription is expired

I know a way to do this, Chris1982. 

You might want to download the trial version of QuickBooks. This would be a great option if there’s something you’d like to complete. Please take a look at this information for steps to download the trial QuickBooks: Desktop link UK.

Also, here's an article on how to restore the file: Backup.

Consider on asking your questions here if there's anything you need help with. 

@Chris1982 ,

Hopefully your backup file version is not too old to restore on QuickBooks 2020.