What is a QuickBooks DSN File?

One of the key purposes of QuickBooks accounting software is to keep the company data safe and secure. For this […]

One of the key purposes of QuickBooks accounting software is to keep the company data safe and secure. For this purpose, the accounting software saves the files with diverse QuickBooks file extensions on your particular system.

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First, Let’s learn what is a QuickBooks DSN file.

What is a QuickBooks DSN File?

DSN (Database Source Name) is an extension linked to particular files that are accessed by the database client program to merge with a database via an ODBC (Open Database Connectivity) driver. The DSN file usually includes the address of the server, the user ID and password, and the name, along with a directory of the data source, and other details. DSN files usually store the data in the form of plain text, however, they can save it in the system registry too.

In today’s article, we will talk about the different QuickBooks file extensions together with QuickBooks DSN files, which are as follows:

  • .QBB, .QBM: It is accessed to backup file types.
  • .QBW: It is accessed for key working files.
  • .DSN, .ND, .TL: It is accessed for database support files.

QuickBooks is the same as any other software and it also reads the data file:

QuickBooks: Filename .QBW

This particular file extension .QBW is usually termed as QuickBooks company data file, QuickBooks file, or company file. It is the main data file that works as a storehouse of all the financial records of the company.

QuickBooks saves all the data files and shows the locations of the company file saved:

  • Start the QuickBooks Accounting Software.
  • Now open the Company File.
  • Now click F2.
  • The Product Information Page will Appear.

When the product information page appears, it shows all the crucial information about your business data and QuickBooks that includes the Data file location. If you wish to take a backup of your particular company data, it is possible to do so with the help of an internal backup function in your QuickBooks account. All you need to do is navigate to File and then click Backup/Create Copy.

What are the Backup File Types (.QBM, .QBB)?

When you are creating a backup of your QuickBooks data, you will see two options:


It is a compressed and portable version, primarily for the financial data of the QuickBooks QBW file. It does not comprise any logos or templates. The QBM file is usually accessed when there is a need for sharing only financial data because of the reduced size of the file.

A portable or backup file is not the primary working file, however, it works as a zipped file which is possible to restore, in case the data file of your company is corrupted or lost.


It takes a backup of the QuickBooks QBW file and saves the important financial information of the company together with letters, logos, images, and templates. All the QuickBooks data must be backed regularly as a QBB file.

What are Database Support Files (.TLG, .DSN, .ND)?

The Database support files are those that do not require direct access.


ND shows Network Data. It is a type of config. File that enables you to use the QuickBooks Company file.


DSN shows Data Source Name. It is a text file that includes all the data required for the particular QuickBooks program to link with the QuickBooks company file.


TLG shows a Transaction Log. It is a type of log file that monitors the changes incurred by the file after the final manual backup.

What are Some of the related terms to the DSN File?

Here is a list of the related terms to the DSN file:

Application ID:

The application ID is termed as a text value to recognize the QuickBooks driver to QuickBooks. During the first connect, QuickBooks request for to allow the driver to use the data. The application name and ID is saved in QB and must be used within QuickBooks internally, and then it will be revealed in the log file of QuickBooks named qbsdklog.txt.

Application Name

The application name is denoted to a descriptive test value that is accessed to find the driver to QuickBooks. Once you allow the driver in QuickBooks Desktop to use the data, the title of the application is saved in QuickBooks.

How to Create a DSN File to Access it as a Data Source to Import the ODBC

The connection needs to be prepared on the particular server that has a restored database. With the steps mentioned below to prepare a DSN file:

  • Open the particular Control Panel. Now find the Administrative tools
  • Press Data sources ODBC
  • Select File DSN options. Now choose Add tab option.
  • Press SQL native client if the ODBC rely on the DB engine.
  • Press Finish button. Add a name to the data file source. Press Next.
  • Select the right DB server. Now press the Next button.
  • Press on the preferred authentication method. Now add login details.
  • Press the Next button.
  • Edit the default database to the particular database that has stored data.
  • Press the Next button. Now choose Finish tab.
  • Now edit the data source to make sure the connection works perfectly.
  • If successful, a wizard will crop up.
  • Press right-click on the table you wish to import into. Select Import Data.
  • Press Import from the provided server.
  • Authenticate the option named
  • Select the ODBC compliant database. Now press the driver to connect the DB.
  • FileDSN is the file route of the particular ODBC connection. The PWD is the password for the particular user account.
  • Add the query you wish to get from the records you need importing to the particular table.
  • Now map the fields. Now run the report.

We hope that everything concerning the concept of QuickBooks DSN file is clear to you. However, if your get stuck anywhere and need professional help, you can get in touch with us. If you need more information on this topic to our team of experts. Our Dancing Numbers team has expertise in handling the problems and queries that are reported by multiple QuickBooks users.

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