Yes, you are correct! Radiohunter. QBW files are the working files you use regularly in QuickBooks, while QBB files are your backup copies, which are crucial for data recovery and generally the most important to keep.

Also, having the additional files (DSN, ND, LGB) can be beneficial for maintaining a smooth operation without any interruptions when you restore the backup. However, they are optional if you only want to preserve your company's essential data.

Refer to this article if you ever run into problems with your data in QuickBooks Desktop: Back up your QuickBooks Desktop company file.

In case your data is damaged, deleted, or lost, but already have backup data stored, check out this article for a detailed steps on restoring company file: Restore a backup of your company file.

If you have any more questions regarding backing up and restoring data in QBDT, Leave a comment below. Have a great time managing your QuickBooks data, and best of luck with QuickBooks 2024!