Steps to run QuickBooks Doctor tool: 1.open QuickBooks and open the file you want to run the file doctor on. 2. Select files, then select edit file or click on the file, then select edit f 3. Click on the “File” menu and select “File Doctor”. 4. Choose what type of problem you would like to fix in your file. 5. To find out what errors needed fixing in your file, scroll down and click “I found an error!” 6. If there are no errors, click “ok” to save your changes.