If they are graded as M, they can continue to use QuickFile for free until they hit 1,000 ledger entries. At this point, they will be prompted for a power user subscription, but there is a deferral period.
If they are a team member, then great - they can log in as normal and continue to access the account.
With the backup, I think because the post is from 2013, we have since moved our knowledgebase to our forums. You can view the guide, here. This will generate a zip file containing the account data in CSV format, which is compatible with Excel.
Hope that helps!