Troubleshooting Step 1: Repair Company File Errors using QuickBooks File Doctor Tool
QuickBooks File Doctor is the first preference of users dealing with company file issues. File Doctor automatically identifies the root cause of the error in the company file and resolves it in a couple of minutes.
You will require QuickBooks Tool Hub to launch QuickBooks File Doctor, so install it straight away.
Run QuickBooks Tool Hub and go to the Company File Issues tab, from where you can access the QB File Doctor tool.
Browse and select your company file in File Doctor, select Check File Damage Only, and click Diagnose File.
Once the file is repaired by QB File Doctor, check if you can access it in QuickBooks.
Hope you find this helpful,
Jimmy Wick