You can follow the underneath steps to convert a qba file to QBW. 1. In the first step, you need to open your accountant’s copy. 2. Now, create a backup of the file so that you can prevent your data loss. 3. After that, click on the File Menu and choose Send Company File. 4. Next, select Accountant’s Copy. 5. Finally, choose Convert Accountant’s Copy to QBW.