Now you have a new company file you can work from. Don't overwrite anything unless you know you want to. If you see any messages about possibly overwriting your data, select the option that best fits your needs.
Or you can save the backup in a completely separate folder. To avoid overwriting anything, you can rename your existing company file or the backup so the names are unique. Note: If you open the backup in the same folder as your existing company file, you may overwrite your data. Important: If your backup company file is on an external device like a USB or a hosting service like Box, you'll need to move it to your local hard drive first. When you restore, QuickBooks uses the backup company file (.qbb) to create a new company file (.qbw). This lets you go back to one of your save points if you ever run into problems. If your computer crashed or you need to undo recent changes, use a backup company file to restore your accounting data.
Learn how to use your backup company file (.qbb) to restore your company file in QuickBooks Desktop.