QuickBooks Backup File Extension

What Is Backup File Extension QuickBooks Desktop

Have you even wondered what type of computer files are there in your system and how to choose a specific file in case you need them? What we think is a lot of people would say no if something like would be asked from them. Only a few who have technical details would draw some interest in the matter. Now, MyOnePro are making this very easy and convenient for you to understand important QuickBooks File Extensions that you might need for future references.

The Information ahead would contain all details related to QuickBooks Working Files and QuickBooks Backup files. If you have QuickBooks in your system, you need to know all these stuffs.

On daily basis, three types of the file extensions are used. These are

  1. .QBW: The Working File
  2. .QBB: QuickBooks Backup File
  3. .QBM: QuickBooks Portable Company File. Learn more What is QuickBooks Portable File ?
QB Backup Files and their Extension
QB Backup Files and their Extension

These files basically work on and host other file types or file extensions. These files might popup time to time during your work processes. Have you consulted with QuickBooks Backup Support team for the precaution while taking the data file from the server.

List Of Extension Used For QB Back Up File

Here, we are providing the list of file extensions that you will surely need in future.

.AIF Accountant’s review copy (import file) It is an Import File (Accountant’s Copy). Created at the time of exporting Accountant’s Copy. Used to import company file of user.
.BDB Timer backup file. When user takes the back up of time data, the back-up file is created in QuickBooks Pro Timer.
.BMP Windows Bitmap file This file extension contains images (Bitmap) that QuickBooks Use.
.BPW Business Planner file It indicates Business Planner Data File. It is always copied to the back separately not with the company file.
.DES Form design template file This file comes into existence at the time of creating the form design by using templates.
.DOC Word Documents It is a word document to jot letter function.
.IIF Intuit Interchange Format file The transaction or/and the list can be exported or imported with the help of Text File using this extension. Instead, the .SDK file is used by QuickBooks users for reading and writing the data between other applications and QuickBooks.
.INI Configuration file To support banking online, this configuration file is required.
.LDB MS Access file for Timer data. It needs a Microsoft Access File to use *.TDB file.
.LGB Little Green Box It has all information about user (Username and Password) in an encrypted form. It comes into action when company file connects with the SDK application and there is a need to let it open in unattended mode.
.LMR Loan Manager Data The Loan Manager creates this file and intact all the information about the loan.

It doesn’t have any backup with the company file. That’s why it should be taken as backup separately.

.ND QuickBooks Network Data File The QuickBooks Company File gets access through this Configuration file. This configuration file should not be deleted. Learn more QuickBooks .ND file
.NPC Online Banking File (obsolete) Few previous QuickBooks versions use this online banking format. No financial institution supports this file now. Only OFX supersedes this file.
.QBA Accountant’s review copy (working copy) When .QBX file is restored by the accountant, it gets the file extension .QBA.
.QBA.TLG Transaction log file (for accountant’s review copy) When Accountant’s Review Copy is backed up by you, a log of the transactions has been started by QuickBooks. In case, the user reports any accidental loss of the data, you will get the most recent back from the QuickBooks Technical Support Team.
.QBB QuickBooks backup file QuickBooks company backup file. To open a .QBB file, go to the File menu and click Restore.
.QBI QuickBooks image file The transactions that have already been written are held in the Image file till the time they are posted and shifted to the hard drive.

All the changes in the Data File are kept in this while this file is open in QuickBooks. Once the company file is closed, QuickBooks will automatically delete the .QBI File. If this file is seen when QuickBooks is running, it simply states that your file might crash for the opened company file. If you find .QBW opened in QuickBooks, keep in mind not to delete .QBI file.

.QBM QuickBooks Portable Company File (for version 2006 and above). This particular file doesn’t specifically contain Database Indexing, it has data only.

.QBB or QBW files are much larger than .QBM file. Since, it has very small data size, it becomes very easy to send or transfer it via internet. But at the receiving end, you can’t restore it to the full QBW file

.QBO Web Connect file. It is an online banking Web Connect Download file. You can download this file from the bank while using online banking web connect method.
.QBW QuickBooks for Windows company file A Significant QuickBooks Company File Type.
.QBW192.168.X.XXmta Temporary Database File It is a temporary file that QuickBooks Database Manager creates at the time of opening the company file. The temporary file gets deleted once the file opens successfully,
.QBX Accountant’s review copy (export file) When an Accountant’s review copy is created. QuickBooks uses .QBX extension to create a review copy.
.TDB QuickBooks Pro Timer files. It uses QuickBooks Timer to check time tracking data
Archive Copy XX/XX/200X ABC.QBW Archive copy of data file When a data file is condensed, a separate QBW file is created using the name Archive Copy

Once the data file is condensed, a separate .QBW file is createdwhich follows the QBW file and XX/XX/200X. This file is always taken as an exact copy of the Data File. It is used to keep the information, that, at the time of condense process was not used. A backup copy of the file is used to create it.

CONNLOG.TXT Connection Log file It contains a log file for QuickBooks online that contains all online banking connection.
DownloadQBXX folder Download folder The QuickBooks create this folder and all the updates are store in this when Update function is used in QuickBooks.
Images Folder Images folder It is a folder that stores temporary copies of the images that QuickBooks uses.
Inet Folder Inet It stores all information related to license but now no longer be used.
QBInstanceFinder Instance Finder file QuickBooks, now, doesn’t use this empty file. But any other version of QuickBooks might create this file.
QBrestor.TMP Temp restore file. When QBB file gets deleted automatically, this file comes into existence. This usually happens restore completion is successful.


Qbwin.log QuickBooks Log file. This file comes into existence when user runs rebuild and/or incorrect situation is found in Logs issue. It is located in Installation Directory of QuickBooks.
QuickBooks Letters Templates folder Letters Folder It comprises document template in word format for letter function of QuickBooks.
Temp1234.qbt Temp rebuild file. The file is created while rebuilding. It gets automatically deleted once the rebuild is complete.

Resolve QB Backup File Problems

MyOnePro always gives attention users issue and problem they faced while using the QB desktop edition, Our QuickBooks Technical Support number not only enabling the user for self-bugging of the issue but also collecting a number of useful information So other user can get befit .

Top Issues & Errors Related to QB Backup File

  • QuickBooks Backup File Will Not Open
  • QuickBooks Backup File Won’t Restore
  • QuickBooks Backup File Restore Failed
  • Download A QuickBooks Backup File
  • QuickBooks Cannot Backup Company File
  • Email QuickBooks Backup File
  • Export QuickBooks Backup File
  • Repair QuickBooks Backup File

MyOnePro covers a number of QuickBooks Errors Code with their meaning and application solutions. However, if still user facing problem like Can’t Backup QuickBooks, Unable to Locate QB Backup File Location or even Unable to Restore QB From Backup file, feel free to ring MyOneProteam on Toll Free Number


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