Can’t Access QuickBooks Company Files? Follow These Easy Fixes Incorrect file permissions, corrupted files, or network problems could be the cause of your inability to access QuickBooks corporate data. Make sure the file is kept locally or on a server that is configured correctly. To identify and correct mistakes, use QuickBooks File Doctor. To regain access, check firewall settings and confirm multi-user mode options.If you experience any problems, call the QB support team at 1.855.738.2784.https://kimwatson332.wixsite.com/accounting-helpline/post/here-s-what-to-do-when-you-can-t-access-quickbooks-company-files