Fix QuickBooks Error 80070057 When Opening a Company File Encountered QuickBooks Error 80070057? Causes: Damaged QuickBooks file. Firewall settings might not be correct. What can be done to resolve Error 80070057? Rename the network data files associated with the corrupted company file. And proceed to add .old to the extension. If you are still facing issues in fixing QuickBooks Error 80070057, reach out to QBSsolved at +1(888) 910 1619.