The backup file (.qbb) contains copies of all of the data you need to re-create your company file (.qbw) and QuickBooks environment, including your supporting files (such as templates, letters, images, and so on).
When to restore a backup file
If your current company file is damaged, you can restore a backup that was made before the damage occurred.
If you need to recover lost data, you can restore a backup that was made before the data was lost.
If you received a backup file from an accountant, use the restore feature to convert the backup to a usable company file on your
own computer. Keep in mind that this will overwrite any changes you've made after the date the backup file was created.
If you need to move your QuickBooks environment to a new machine, you can restore a backup file to the new location.
How the restore process works
To use the backup file, you must first restore the backup file using the restore wizard. When you restore the backup:
Your backup file (.qbb) is restored as a company file (.qbw) to the location you specify in the restore wizard.
Supporting files (such as templates, letters, logos, and images) are restored to a separate folder named \Restored_(company filename)Files so as not to overwrite the existing files on your computer. You can also find your restored
Financial Statement Designer, Cash Flow Projector, Business Planner, and Loan Manager files
if you are using these features.
You can begin using the restored company file right away. However, you'll need to copy any supporting files that you need from the \Restored_(company filename)Files folder back to their original folders. The file HowToRestoreExternalFiles.txt located in the same folder describes how to do this.
Important: Be sure to read the file HowToRestoreExternalFiles.txt before restoring your supporting files. When you copy these files back to their original folders, you'll overwrite any changes made since the backup was created.
Can I restore only a part of a company file or data from a specific date range?
Why is the data in the restored file not current?
Can I recover data that I entered after my last backup?
QuickBooks uses a transaction log file to track changes to your data since
the last time you backed up your company file, provided you have set a verification level. In case of an accidental data
loss, Intuit Technical Support can use your transaction log file, in conjunction
with your most recent backup, to recover your data up to your most recently
saved transactions. For more information about data recovery, contact Intuit
The transaction log file is also created if you sync your QuickBooks data with
certain online services using Intuit Sync Manager.
In this case, the transaction log file allows ongoing syncs to happen much more quickly
than the initial full upload of QuickBooks data into your online services.
The transaction log file has the same name as your company file, but with a
.qbw.tlg extension. For example, MyCompany.qbw has a transaction log file named
Back up company files
Restore company files
Intuit Sync Manager overview
Can I restore a backup file from a newer version of QuickBooks into a previous version?
Back up company files overview
General information about updating a company file to a new version of QuickBooks
Troubleshoot restore problems