The following table describes the file extensions that QuickBooks uses for files that it creates, imports, or exports.

Extension

File type

Description

.DES

Quick Books form template

Quick Books provides a variety of templates that you can use for your forms.

.IIF

Intuit Interchange Format file

You can import and export lists and/or transactions using text files with an .IIF extension.

.ND

Quick Books Network Data File

A configuration file that allows access to the Quick Books company file. Do not delete this configuration file.

.QBA

Accountant's Copy working file

When you export your Quick Books data for your accountant to review, the accountant restores the export file on his or her computer as a file with a .QBA extension.

.QBA.TLG

transaction log file 
(for Accountant's Copy)

When you back up an Accountant's Copy, QuickBooks starts a log of transactions that you've entered since the last time you backed up. The file is created during backup provided you have set a verification level. In case of accidental loss of data, Technical Support can use your most recent backup in conjunction with the transaction log file to recover your data.

.QBB

QuickBooks backup file

When you back up your company file, QuickBooks saves the backup file with a .QBB extension. To open a .QBB file, go to the Filemenu and clickRestore.

.QBM

Quick Books portable company file

When you want to e-mail or move a company file, Quick Books creates a compressed version of the company file with a .QBM extension.

.QBR

Report template

When you export the template for a memorized report, Quick Books saves the file with a .QBR extension.

.QBW

Quick Books for Windows company file

When you create a company file, Quick Books saves the file with a .QBW extension. For example, if you enter MyBusiness as the company name, Quick Books saves the file as MyBusiness.QBW.

.QBW.TLG

transaction log file
(for Quick Books company file)

When you back up your company file, QuickBooks starts a log of transactions that you've entered since the last time you backed up. In case of accidental loss of data, Technical Support can use your most recent backup in conjunction with the transaction log file to recover your data.

.QBX

Accountant's Copy (export file)

When you export your Quick Books data for your accountant to review, Quick Books creates an Accountant's Copy with a .QBX extension.

.QBY

Accountant's Copy (import file)

When your accountant is finished making changes in an Accountant's Copy, he or she provides you with a .QBY file to be imported into your company file.