QuickBooks File Doctor is an enhanced version of the diagnostic tool that is used by various QuickBooks users to troubleshoot many issues such as windows issues, file data corruption issues, network-related errors, etc. The doctor tool first checks the files and detects the issue in the company files. After detecting the issue, the tool starts fixing it automatically. Additionally, the file doctor is only compatible with the UK and US versions of QuickBooks software. You should remember that the inbuilt file doctor can only resolve the data-related issues. You will not be able to resolve company file errors or other issues by the internal doctor tool.